1.
The definition "unit of measure that tells how much electricity flows through a conductor" best fits what science term?
Correct Answer
D. Ampere
Explanation
The definition "unit of measure that tells how much electricity flows through a conductor" best fits the science term Ampere. Ampere is the standard unit used to measure electric current, which is the flow of electric charge in a circuit. It quantifies the amount of electricity flowing through a conductor, making it the most appropriate choice among the given options.
2.
The definition of "substance left over after combustible material has been completely burned" best fits what science term?
Correct Answer
D. Ash
Explanation
Ash is the substance left over after combustible material has been completely burned. It is the residue that remains when something is burned, such as wood or coal. This definition accurately describes the term "ash" in the context of science. Ash is commonly associated with fire and combustion processes, and it is often used as a source of information in fields like archaeology and environmental science.
3.
In the petroleum industry, what's the equivalent of 42 U.S. gallons?
Correct Answer
B. Barrel
Explanation
In the petroleum industry, the equivalent of 42 U.S. gallons is a barrel. A barrel is a unit of measurement commonly used to quantify the volume of crude oil or other petroleum products. It is equal to 42 U.S. gallons or approximately 159 liters.
4.
The definition of "a closed vessel in which water is converted to pressurized steam" best fits what science term?
Correct Answer
D. Boiler
Explanation
A boiler is a closed vessel in which water is converted to pressurized steam. This definition perfectly matches the term "boiler." A boiler is commonly used in various industries to generate steam for heating or power generation purposes. It operates by heating the water inside the vessel until it reaches a high temperature and pressure, producing steam. The steam can then be used for different applications, such as running turbines or heating systems. Therefore, "boiler" is the correct answer for the given definition.
5.
The definition of "controlled power reduction in which the utility decreases the voltage on the power lines" best fits which science term?
Correct Answer
C. Brownout
Explanation
A brownout is a controlled power reduction in which the utility decreases the voltage on the power lines. This means that there is a temporary decrease in the amount of electrical power available to consumers. This term specifically refers to a situation where the voltage is intentionally reduced to prevent a complete blackout or overload on the power grid. Therefore, the definition provided best fits the science term "brownout".
6.
The definition of "hydrocarbon gas found in the earth along with natural gas and oil" best fits which science term?
Correct Answer
C. Butane
Explanation
Butane is a hydrocarbon gas that is commonly found in the earth along with natural gas and oil. It is often used as a fuel for heating and cooking due to its high energy content. Canopy refers to the upper layer of a forest, groundwater refers to water that is stored underground, and cirriform refers to a type of cloud. Therefore, the best fit for the given definition is Butane.
7.
What is another word for potential cancer-causing agents in the environment, notably in cigarettes?
Correct Answer
D. Carcinogens
Explanation
Carcinogens are substances that have the potential to cause cancer. They are commonly found in the environment, particularly in cigarettes.
8.
The definition of "petroleum as found in the earth, before it is refined" best fits which science term?
Correct Answer
B. Crude Oil
Explanation
Crude oil is the correct answer because it refers to petroleum as found in the earth before it is refined. It is a natural resource that is extracted from the ground and is the raw material used to produce various fuels and petrochemical products. Artificial Intelligence, Energy, and Sunset are not related to the definition of petroleum before refinement.
9.
The definition of "electricity that flows continuously in the same direction" best fits which science term?
Correct Answer
B. Direct Current
Explanation
Direct current is the flow of electric charge in a single direction. It is commonly used in electronic devices and power transmission systems. This term accurately describes electricity that flows continuously in the same direction, making it the best fit for the given definition. Ecology, dusk, and typhoon are unrelated to the concept of electric current.
10.
The "study of interrelationships of animals and plants to their environment" best fits which term?
Correct Answer
C. Ecology
Explanation
Ecology is the study of interrelationships between animals and plants and their environment. It focuses on understanding the interactions and dependencies between organisms and their surroundings. Paleontology is the study of ancient life forms, archaeology is the study of human history through artifacts, and animal husbandry is the practice of breeding and caring for animals. Therefore, the correct answer is Ecology.
11.
"Interacting system of biological community and its nonliving environment" best fits which term?
Correct Answer
B. Ecosystem
Explanation
An ecosystem refers to the interacting system of a biological community and its nonliving environment. It includes all the living organisms (plants, animals, microorganisms) in a particular area, as well as the physical factors (temperature, sunlight, soil composition) that influence them. This term encompasses the relationships and interactions between the living and nonliving components of an environment, highlighting the interconnectedness and interdependence of all organisms within a specific habitat.
12.
What scientific term means "breaking a compound down to its elements by passing current through it"?
Correct Answer
B. Electrolysis
Explanation
Electrolysis is the scientific term that refers to the process of breaking a compound down to its elements by passing an electric current through it. This process involves the use of an electrolyte, which is a substance that conducts electricity, and electrodes that are connected to a power source. The electric current causes the compound to undergo chemical reactions, resulting in the separation of its elements. This term is commonly used in fields such as chemistry and metallurgy.
13.
The definition of "the maximum amount of a pollutant legally permitted to be discharged from a single source" best fits which science term?
Correct Answer
B. Emission Standard
Explanation
The definition provided refers to the maximum amount of a pollutant that is legally allowed to be released from a single source. This concept is commonly known as an "Emission Standard." Emission standards are regulations or guidelines set by authorities to limit the amount of pollutants that can be emitted into the environment, aiming to protect human health and the environment from harmful pollution. Therefore, the term "Emission Standard" is the most appropriate science term that aligns with the given definition.
14.
The definition of "a colorless gas that burns and is an oil refinery product" best fits which science term?
Correct Answer
B. Ethylene
Explanation
Ethylene is a colorless gas that is highly flammable and is commonly used in the oil refinery industry. It is produced during the refining process and is used as a fuel for burning. Therefore, ethylene is the best fit for the given definition of "a colorless gas that burns and is an oil refinery product."
15.
The definition of "the federal agency in charge of disaster recovery" best fits which science term?
Correct Answer
D. Federal Emergency Management Agency (Fema)
Explanation
The correct answer is Federal Emergency Management Agency (FEMA). FEMA is the federal agency responsible for coordinating and supporting disaster response and recovery efforts in the United States. They work to provide assistance and resources to individuals and communities affected by natural or man-made disasters, helping to rebuild and recover from the impacts of these events.