1.
Which of the following is heterogeneous?
Correct Answer
C. Sea water
Explanation
Sea water is heterogeneous because it is a mixture of various substances such as salt, minerals, and other organic matter. These components are not evenly distributed throughout the water, resulting in different concentrations and properties in different parts of the water. This makes sea water a heterogeneous mixture.
2.
Eight out of the top ten leading causes of morbidity in the Philippines are communicable. To prevent from happening to your students the best advice you can give them is to _________.
Correct Answer
D. ​​​​​​​Wash hands frequently
Explanation
The correct answer is "Wash hands frequently" because communicable diseases are often spread through contact with contaminated surfaces or through direct contact with infected individuals. Washing hands frequently with soap and water can help remove germs and prevent the spread of diseases.
3.
Iron-deficiency contributes to the poor scholastic performance of students. Which of the following food items is best for Iron-deficient students?
Correct Answer
D. Liver
Explanation
Liver is the best food item for iron-deficient students. Liver is a rich source of iron and is highly beneficial for individuals with iron deficiency. Iron is essential for the production of hemoglobin, which carries oxygen to the body's cells, including the brain. Adequate iron levels are crucial for cognitive function and concentration, both of which are important for scholastic performance. Therefore, consuming liver can help improve iron levels and subsequently enhance the academic performance of iron-deficient students.
4.
The interaction between living organisms and nonliving elements in the environment is called a/an ____________
Correct Answer
D. Ecosystem
Explanation
An ecosystem refers to the interaction between living organisms and nonliving elements in the environment. It encompasses a community of different species that coexist and interact with each other, as well as the physical and chemical factors of their environment. This term describes the complex and interconnected web of relationships between organisms and their surroundings, highlighting the interdependence and interconnections that exist within a specific area or habitat.
5.
Which of the following best differentiated an earthquake’s intensity from its magnitude?
Correct Answer
D. Intensity is a measure of how much damage an earthquake caused at the surface while magnitude is the strength of the quake.
Explanation
The explanation for the given correct answer is that intensity is a measure of the amount of damage caused by an earthquake at the surface, while magnitude refers to the strength or energy of the earthquake. Intensity is based on the observed effects of the earthquake, such as damage to buildings and infrastructure, while magnitude is determined by the amplitude of seismic waves recorded by a seismograph. Therefore, intensity and magnitude provide different perspectives on the earthquake, with intensity focusing on the impact on the surface and magnitude focusing on the energy released.
6.
What is the type response exhibited by the roots of plants?
Correct Answer
B. ​​​​​​​Positive geotropism
Explanation
Positive geotropism is the type of response exhibited by the roots of plants. Geotropism is the growth or movement of an organism in response to gravity. In the case of roots, positive geotropism means that they grow in the direction of gravity, towards the center of the Earth. This helps the roots to anchor the plant in the soil and absorb water and nutrients effectively.
7.
All of the following problems may arise in the use of a sanitary landfill, except:
Correct Answer
C. Flashfloods and degradation of soil
Explanation
Sanitary landfills can produce methane gas, leading to potential explosions, and can cause pollution of surrounding soil. Additionally, residents often refuse the construction of landfills in their area due to concerns over these issues. However, flashfloods and degradation of soil are not typically direct problems associated with sanitary landfills. Flashfloods are more related to weather patterns and soil degradation to agricultural practices or erosion, not directly to landfill operations.
8.
Patients suffering from malfunction of the kidney are now assisted by machine that serves as artificial kidney called ____________.
Correct Answer
D. Hemodializer
Explanation
The correct answer is Hemodializer. Patients suffering from malfunction of the kidney are assisted by a machine called a hemodializer, which serves as an artificial kidney. This machine helps to filter waste products and excess fluids from the blood, performing the functions that the damaged kidneys are unable to do. By using a process called hemodialysis, the hemodializer helps to maintain the balance of electrolytes and remove toxins from the body, improving the patient's overall kidney function.
9.
Why do we hear thunder some seconds after seeing lightning?
Correct Answer
B. Light travels faster than sound
Explanation
Thunder is the sound produced by the rapid expansion and contraction of air surrounding a lightning bolt. Since light travels much faster than sound, we see the lightning instantly, but it takes some time for the sound waves to reach our ears. This delay between seeing the lightning and hearing the thunder is due to the speed difference between light and sound.
10.
Meteorology is a very important branch of natural science, without which we cannot be informed of forthcoming ____________.
Correct Answer
B. Tropical cyclone
Explanation
Meteorology is the study of the Earth's atmosphere and weather patterns. By understanding meteorology, we are able to predict and track tropical cyclones, which are severe storms that form over warm ocean waters. These storms can cause significant damage and loss of life, so being informed about their formation and movement is crucial for preparedness and safety measures. Therefore, meteorology plays a vital role in keeping us informed about forthcoming tropical cyclones.
11.
Wastes from the kitchen are considered useful if properly separated. How are they classified?
Correct Answer
B. Biodegrable
Explanation
Kitchen wastes are classified as biodegradable because they can be broken down naturally by microorganisms and decomposed into simpler substances. This includes organic materials such as food scraps, vegetable peels, and leftover food, which can be composted or used for producing biogas through anaerobic digestion. Proper separation of kitchen wastes ensures that they can be effectively recycled or reused, reducing the environmental impact and promoting sustainability.
12.
To lessen vehicular air pollution, the government should?
Correct Answer
D. Ban smoke-belchers on the roads.
Explanation
Banning smoke-belchers on the roads would be an effective measure to lessen vehicular air pollution. Smoke-belchers are vehicles that emit excessive amounts of smoke and pollutants into the air, contributing to air pollution. By implementing a ban on these vehicles, the government can significantly reduce the amount of harmful emissions released into the atmosphere, leading to cleaner air and improved air quality. This measure would be more practical and feasible compared to asking pedestrians to use bicycles or imposing penalties on decade-old vehicles. Utilizing rail transits like MRT and LRT can also help reduce pollution, but it may not be a viable solution for all areas and may require significant infrastructure development.
13.
Developing mines require getting a DENR clearance. Which of the following clearances are required?
Correct Answer
B. Environmental clearance
Explanation
Developing mines require an environmental clearance because mining activities can have significant environmental impacts. This clearance ensures that the proposed mining project complies with environmental regulations and that appropriate measures are in place to mitigate any potential harm to the environment. It involves assessing the potential impacts on air quality, water quality, biodiversity, and other environmental factors. The clearance also involves consultation with relevant stakeholders and may require the submission of an environmental impact assessment report. Overall, the environmental clearance is necessary to ensure responsible and sustainable mining practices.
14.
The latest discovery in biological science as applied to animal industry, is most widely used in?
Correct Answer
B. Artificial breeding
Explanation
Artificial breeding refers to the controlled reproduction of animals through various techniques such as artificial insemination, in vitro fertilization, and embryo transfer. This latest discovery in biological science has revolutionized the animal industry by allowing farmers and breeders to selectively breed animals with desirable traits, improve the genetic quality of livestock, and increase the efficiency of reproduction. This technique is widely used in animal agriculture to enhance production, improve animal health, and preserve endangered species.
15.
Agricultural centers have found lately varieties of coconut propagation. Through what means were the coconut varieties get discovered and distributed?
Correct Answer
D. Putting up plant nurseries
Explanation
Plant nurseries have played a significant role in the discovery and distribution of coconut varieties. By establishing plant nurseries, agricultural centers can cultivate and grow different coconut varieties in a controlled environment. This allows them to study the characteristics and traits of each variety, as well as propagate and distribute them to farmers and other interested parties. Plant nurseries provide a platform for the exploration and expansion of coconut varieties, ultimately contributing to the agricultural industry's knowledge and resources.
16.
Acid rain causes fish kills, destroy buildings, dissolve river nutrients, etc. which of the following causes acid rain?
Correct Answer
C. Burning fossil fuels
Explanation
Burning fossil fuels is the cause of acid rain. When fossil fuels such as coal, oil, and natural gas are burned, they release pollutants into the atmosphere, including sulfur dioxide and nitrogen oxides. These pollutants react with water, oxygen, and other chemicals in the atmosphere to form sulfuric acid and nitric acid, which then fall to the ground as acid rain. This acid rain can have harmful effects on the environment, including damaging ecosystems, killing fish, corroding buildings, and depleting nutrients in rivers.
17.
Is the relationship between an organism and a host where neither benefited nor harmed.
Correct Answer
A. Commensalism
Explanation
Commensalism is the correct answer because it describes a relationship between an organism and a host where one organism benefits while the other is neither benefited nor harmed. In commensalism, the organism that benefits is called the commensal, while the host is unaffected. This type of relationship can be seen in situations where one organism uses another for transportation, shelter, or food remnants without causing any harm or benefit to the host.
18.
The main energy source of a plant-eating animal.
Correct Answer
A. Glucose
Explanation
Glucose is the correct answer because it is the main energy source for plant-eating animals. Glucose is a simple sugar that is produced during photosynthesis in plants and is stored in various forms such as starch, cellulose, and glycogen. When plant-eating animals consume plants, they break down these complex carbohydrates into glucose molecules, which can be used by their cells to produce energy through cellular respiration. Glucose is easily metabolized by the body and serves as a vital source of energy for the functioning of various physiological processes in plant-eating animals.
19.
Which of the following is a vitamin?
Correct Answer
A. Niacin
Explanation
Niacin is a vitamin, specifically a B vitamin, also known as vitamin B3. It plays a crucial role in energy production, DNA repair, and the functioning of the nervous system. Niacin is found in various foods, including meat, fish, poultry, and grains. Deficiency of niacin can lead to a condition called pellagra, which is characterized by symptoms such as dermatitis, diarrhea, and dementia.
20.
Which element has Ca as its symbol?
Correct Answer
D. Calcium
Explanation
Calcium is the element that has the symbol Ca. The symbols for elements are derived from their Latin names, and in the case of calcium, the symbol Ca comes from its Latin name "calcis." Cadmium has the symbol Cd, Californium has the symbol Cf, and Carbon has the symbol C. Therefore, the correct answer is Calcium.
21.
Besides solid, liquid, gas, what is the fourth form of matter?
Correct Answer
A. Plasma
Explanation
Plasma is considered the fourth form of matter because it is an ionized gas consisting of charged particles. Unlike solids, liquids, and gases, plasma does not have a fixed shape or volume and is made up of positively and negatively charged particles. It is commonly found in stars, lightning, and fluorescent lights. Plasma also plays a crucial role in various scientific and technological applications, such as fusion energy research and plasma TVs.
22.
What is the term for the slowing-down response by the frog’s circulatory during the cold season?
Correct Answer
C. Hibernation
Explanation
Hibernation is the term for the slowing-down response by the frog's circulatory system during the cold season. This is a natural state of reduced metabolic activity and lowered body temperature that allows the frog to conserve energy and survive in cold environments. During hibernation, the frog's heart rate and breathing slow down, and its body temperature drops to match the surrounding environment. This enables the frog to endure the harsh conditions of winter and resume normal activity when warmer temperatures return.
23.
Iron is what type of magnetic material?
Correct Answer
B. Ferromagnetic
Explanation
Iron is classified as a ferromagnetic material because it has a strong attraction to magnetic fields. Ferromagnetic materials, such as iron, nickel, and cobalt, have the ability to become permanently magnetized when exposed to a magnetic field. This is due to the alignment of the magnetic domains within the material, which causes a strong magnetic attraction. Iron is widely used in various applications that require magnetism, such as electromagnets, transformers, and magnetic storage devices.
24.
You won the jackpot prize in the lottery. The prize money cannot be paid in currency but in gold. Applying your knowledge in chemistry, select the largest amount of gold from the choices below (Au=197)
Correct Answer
B. 40 kg of gold
Explanation
The correct answer is 40 kg of gold. The question asks for the largest amount of gold, and 40 kg is a larger quantity than 297 g, Avogadro's number of atoms, or 22.4 moles.
25.
Which law of force and motion explains this occurrence: when a rocket is propelled upward by the downward discharge of exhaust gasses?
Correct Answer
D. Interaction
Explanation
The correct answer for this question is "Interaction". This is because the upward propulsion of a rocket is a result of the interaction between the rocket and the downward discharge of exhaust gases. The rocket pushes the gases downward, and in turn, the gases push the rocket upward. This interaction follows Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.
26.
Trace the conversion of energy that occurs when plants manufacture food.
Correct Answer
A. Radiant energy to chemical energy
Explanation
Plants convert radiant energy from the sun into chemical energy through the process of photosynthesis. During photosynthesis, plants use the energy from sunlight to convert carbon dioxide and water into glucose (a form of chemical energy) and oxygen. This chemical energy is stored in the form of glucose and used by plants for growth and other metabolic processes. Therefore, the conversion of energy that occurs when plants manufacture food involves the transformation of radiant energy into chemical energy.
27.
Two people pull on a rope in a tug-of-war, each pull with a 400 N force. What is the tension in the rope?
Correct Answer
C. 400 N
Explanation
When two people pull on a rope in a tug-of-war, the tension in the rope is equal to the sum of the forces applied by each person. In this case, each person pulls with a force of 400 N. Therefore, the total tension in the rope is 400 N.
28.
You noticed that big industries have tower-like tall stacks. What is the structure for?
Correct Answer
A. ​​​​​​​To control emission of hazardous gases
Explanation
Big industries have tall stacks in order to control the emission of hazardous gases. These stacks are designed to release the gases at a high altitude, allowing them to disperse and dilute in the atmosphere, reducing their impact on the surrounding environment. This helps to minimize air pollution and protect the health of both humans and the ecosystem.
29.
How mat the establishment of housing subdivisions to address housing problem contribute to decreased food production?
Correct Answer
B. Arable lands are reduced for these are converted into housing subdivisions.
Explanation
The establishment of housing subdivisions contributes to decreased food production because arable lands are being converted into housing subdivisions. This means that the land that was previously used for farming and agriculture is now being used for housing purposes, reducing the available land for food production. As a result, there is less space for farming and fewer opportunities for people to grow food, leading to a decrease in overall food production.
30.
Endangered species which are threatened due to ________
Correct Answer
A. Habitat destruction
Explanation
Habitat destruction refers to the degradation or loss of a species' natural habitat, which can have severe negative impacts on their survival and reproduction. This can occur due to various human activities such as deforestation, urbanization, pollution, and climate change. When a species loses its habitat, it loses access to food, water, shelter, and breeding grounds, leading to a decline in population and ultimately putting the species at risk of extinction. Therefore, habitat destruction is a significant threat to endangered species.
31.
Which of the following are expected effects of DDT on the health of the people living in the town?
I. Severe kidney damage
II. Diabetes mellitus
III. Breast cancer
Correct Answer
A. I, II and III
Explanation
DDT is a pesticide that has been linked to various health issues. Severe kidney damage can occur as a result of exposure to DDT. Additionally, studies have shown an association between DDT exposure and an increased risk of developing diabetes mellitus. Furthermore, there is evidence suggesting a potential link between DDT exposure and an increased risk of breast cancer. Therefore, all three options, I, II, and III, are expected effects of DDT on the health of people living in the town.
32.
Which of the following is the primary concern of marriage?
Correct Answer
A. The mutual production and security of man and woman
Explanation
The primary concern of marriage is the mutual production and security of man and woman. Marriage is a partnership where both individuals contribute to the well-being and support of each other. It involves the creation of a stable and secure environment for the couple, where they can work together to build a life and achieve their goals. This includes financial stability, emotional support, and physical safety. Marriage is not solely about companionship or maintaining social status, but also about the joint effort of a man and a woman to create a stable and secure future for themselves.
33.
What is a characteristics of a progressive tax system?
Correct Answer
A. The tax is greater for higher incomes
Explanation
A progressive tax system is characterized by the tax being greater for higher incomes. This means that as individuals earn more money, they are required to pay a higher percentage of their income in taxes. This system aims to redistribute wealth and create a more equitable tax burden, as those who earn more have a higher ability to pay taxes.
34.
With the arrival of the conquistadores, Philippine society was predominantly ________.
Correct Answer
A. Feudalistic
Explanation
With the arrival of the conquistadores, Philippine society was predominantly feudalistic. This implies that the social structure was characterized by a hierarchical system in which land and resources were owned by a small elite class, while the majority of the population worked as peasants or serfs. The conquistadores established a system of encomienda, where they were granted land and labor from the indigenous people, further reinforcing the feudalistic nature of the society. This system allowed the conquistadores to maintain power and control over the local population, leading to a predominantly feudalistic society in the Philippines during that time.
35.
In connection with government transactions involving public interest, which policy is adopted in the Constitution to assure the public of accountability and transparency?
Correct Answer
A. Full public disclosure
Explanation
The policy of full public disclosure is adopted in the Constitution to assure the public of accountability and transparency in government transactions involving public interest. This means that the government is required to provide complete and accurate information to the public regarding its actions, decisions, and use of public resources. By practicing full public disclosure, the government promotes openness, accountability, and trust between the government and the public, allowing citizens to have access to information and participate in the decision-making process.
36.
The apex of the 19th Century pyramidal structure was occupied by the Spanish EXCEPT the _______.
Correct Answer
D. Indios
Explanation
During the 19th century, the apex of the pyramidal structure in Spanish society was occupied by officials, peninsulares (Spanish-born individuals), and friars. The term "Indios" refers to the indigenous people of the Philippines, who were at the lower end of the social hierarchy. Therefore, the correct answer is "Indios" because they were not part of the Spanish elite that occupied the apex of the social structure.
37.
They were the small middle class EXCEPT the _________.
Correct Answer
D. Peninsulares
Explanation
The question is asking for the exception among the small middle class. The small middle class is typically made up of Creoles, Mestizos, and Indios. However, the Peninsulares are not part of the small middle class as they belong to the upper class. Therefore, the correct answer is Peninsulares.
38.
This body helped the Spanish monarchs managaed the affairs of the colonies through a centralized machinery.
Correct Answer
A. Ministro de Ultramar
Explanation
The correct answer is "Ministro de Ultramar." The Ministro de Ultramar was a position in the Spanish government that helped the Spanish monarchs manage the affairs of the colonies through a centralized machinery. This position was responsible for overseeing and coordinating the administration of the overseas territories. The Ministro de Ultramar played a crucial role in maintaining control and governance over the colonies, ensuring that the Spanish monarchs' interests were protected and upheld.
39.
An appointed official of the Spanish monarch who headed the central administration in Manila.
Correct Answer
B. Governor General
Explanation
The Governor General was an appointed official of the Spanish monarch who headed the central administration in Manila. This position held significant power and authority in governing the Spanish colonies in the Philippines. The Governor General was responsible for overseeing various aspects of governance, including political, economic, and military affairs. They acted as the highest-ranking official in the colony and represented the interests of the Spanish crown. Their role was crucial in maintaining control and enforcing Spanish rule in the Philippines during the colonial period.
40.
Rizal’s great-great-grandfather was
Correct Answer
B. Domingo Lamco
Explanation
The correct answer is Domingo Lamco. Domingo Lamco is Rizal's great-great-grandfather. This information is not provided in the question, but it is the only option given that matches the criteria of being Rizal's great-great-grandfather.
41.
Francisco Mercado’s wife, Bernarda Monicha, was a
Correct Answer
A. Chinese Mestiza
Explanation
Francisco Mercado's wife, Bernarda Monicha, was a Chinese Mestiza. This term refers to someone of mixed Filipino and Chinese ancestry, which was relatively common in the Philippines during the period.
42.
The age of Francisco Mercado when Rizal was born
Correct Answer
B. 43 years old
Explanation
The correct answer is 43 years old. This suggests that Francisco Mercado, Rizal's father, was 43 years old when Rizal was born. This information is important as it provides insight into the age difference between Rizal and his father, which may have influenced their relationship and the dynamics within their family.
43.
The age of Jose Rizal when his parents sent him to Biñan to undergo formal schooling
Correct Answer
B. 9 years old
Explanation
When Jose Rizal's parents sent him to Biñan to undergo formal schooling, he was 9 years old. This suggests that his parents believed he was ready to begin his education and deemed it important for him to receive a formal education at that age.
44.
Rizal submitted a poem which won first prize at the Liceo Artistico Literario de Manila.
Correct Answer
C. “A la Juventud Filipina”
Explanation
The correct answer is "A la Juventud Filipina". This is because the question states that Rizal submitted a poem which won first prize at the Liceo Artistico Literario de Manila. Out of the given options, "A la Juventud Filipina" is the only poem mentioned that could have won the first prize.
45.
Rizal’s first professor
Correct Answer
B. Fr. Jose Beach
46.
The publisher of Diariong Tagalog who was a friend of Jose Rizal
Correct Answer
D. Basilio Moran
Explanation
Basilio Moran is the correct answer because he was the publisher of Diariong Tagalog and a friend of Jose Rizal. Marcelo H. Del Pilar, Pedro A. Paterno, and Edwardo de Lete were also prominent figures during the Philippine Revolution, but they were not specifically mentioned as friends of Rizal or publishers of Diariong Tagalog.
47.
The pen name of Rizal used to write the essay in Barcelona
Correct Answer
A. Laong laan
Explanation
Rizal used the pen name "Laong laan" to write the essay in Barcelona.
48.
Rizal spent his money wisely and never on these things.
Correct Answer
A. Wine and women
Explanation
The given statement implies that Rizal was careful with his finances and did not spend money on indulgences such as wine and women. This suggests that he was responsible and prioritized his expenses wisely. The other options mentioned, such as the Spanish lottery, writing articles, and attending operas and concerts, are not mentioned as things Rizal spent his money on, so they are not relevant to the explanation.
49.
What does TRAIN Law stands for?
Correct Answer
C. Tax Reform for Acceleration and Inclusion Act
Explanation
The correct answer is "Tax Reform for Acceleration and Inclusion Act". The TRAIN Law stands for Tax Reform for Acceleration and Inclusion Act. This law was enacted in the Philippines in 2017 with the aim of restructuring the country's tax system to promote economic growth, reduce poverty, and improve the overall welfare of the Filipino people. The law includes provisions such as lowering personal income tax rates, expanding the value-added tax base, and implementing excise tax reforms on certain goods and services.
50.
June 12: Philippine Independence ; July 4: ____________
Correct Answer
B. pHilippine- American Friendship Day
Explanation
The correct answer is Philippine-American Friendship Day. This is because July 4 is historically significant for the Philippines as it marks the day when the country gained independence from the United States in 1946. The Philippine-American Friendship Day is a celebration of the enduring friendship and strong ties between the two nations. It serves as a reminder of the shared history and mutual cooperation between the Philippines and the United States.