1.
Which of the following is NOT an ozone-depleting substance?
Correct Answer
B. Isopropyl alcohol
Explanation
Isopropyl alcohol is not an ozone-depleting substance because it does not contain chlorine or bromine, which are the primary components responsible for ozone depletion. Ozone-depleting substances, such as chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs), release chlorine and bromine atoms into the atmosphere, which then react with ozone molecules and break them down. Isopropyl alcohol, on the other hand, does not contain chlorine or bromine and therefore does not contribute to ozone depletion.
2.
Which of the following is the consequence for biodiversity loss?
Correct Answer
A. Habitat alteration or destruction
Explanation
Biodiversity loss can lead to habitat alteration or destruction, as the loss of different species can disrupt the delicate balance of ecosystems. When certain species disappear, it can affect the availability of food, shelter, and other resources for other organisms, leading to changes in the physical structure and composition of habitats. This can have cascading effects on the entire ecosystem, potentially causing the loss of other species and reducing overall biodiversity. Habitat alteration or destruction is a significant consequence of biodiversity loss and can have far-reaching environmental impacts.
3.
This is a form of heat energy, which originates deep in the earth's molten interior.
Correct Answer
D. Geothermal
Explanation
Geothermal energy is the correct answer because it refers to the heat energy that comes from the earth's molten interior. Unlike solar, biomass, and hydropower, which rely on external sources, geothermal energy is derived from the natural heat produced within the earth. This energy can be harnessed for various purposes, such as heating and electricity generation, making it a sustainable and renewable energy source.
4.
The energy that bonds molecules together.
Correct Answer
C. Chemical energy
Explanation
Chemical energy is the correct answer because it refers to the energy that is stored within the chemical bonds of molecules. When these bonds are broken or formed during a chemical reaction, energy is released or absorbed. This energy is responsible for the various chemical processes and reactions that occur in living organisms and in the environment. It is a form of potential energy that can be converted into other forms, such as heat or light energy, depending on the specific reaction.
5.
The Law of ________________ states that energy cannot be created nor destroyed.
Correct Answer
conservation of energy
Explanation
The Law of Conservation of Energy states that energy cannot be created nor destroyed. This principle is based on the understanding that energy can only be transferred or transformed from one form to another. In other words, the total amount of energy in a closed system remains constant over time. This law is a fundamental concept in physics and is supported by numerous experimental observations and mathematical equations. It has wide-ranging applications in various fields, including mechanics, thermodynamics, and electromagnetism.
6.
Trees decrease the level of oxygen in the atmosphere.
Correct Answer
B. False
Explanation
This statement is false. Trees actually increase the level of oxygen in the atmosphere through the process of photosynthesis. During photosynthesis, trees absorb carbon dioxide and release oxygen as a byproduct. Therefore, trees play a crucial role in maintaining the oxygen levels in the atmosphere and are often referred to as the "lungs of the Earth".
7.
Many of these are generally not destroyed in use and can be recycled.
Correct Answer
minerals
mineral
Explanation
Minerals are generally not destroyed in use and can be recycled. This is because minerals are naturally occurring substances that are formed through geological processes and are not easily broken down or destroyed by human activities. Additionally, minerals can be extracted from the earth and processed to create new products, making them a valuable resource that can be reused and recycled.
8.
One of the causes of resource depletion is the non-equitable distribution of resources.
Correct Answer
A. True
Explanation
The statement suggests that resource depletion occurs when resources are not distributed fairly or equally among individuals or regions. This means that some areas or groups may have access to more resources than they actually need, while others may not have enough to sustain themselves. This unequal distribution can lead to overconsumption and exploitation of resources in certain areas, ultimately resulting in resource depletion. Therefore, the given answer, "True," is correct.
9.
Which layer absorbs almost all the ultraviolet radiation that reaches the earth?
Correct Answer
C. Stratospheric ozone
Explanation
The stratospheric ozone layer absorbs almost all the ultraviolet radiation that reaches the earth. This layer is located approximately 10 to 50 kilometers above the earth's surface and contains a high concentration of ozone molecules. Ozone is a molecule made up of three oxygen atoms and has the ability to absorb and scatter UV radiation. This absorption process prevents most of the harmful UV radiation from reaching the earth's surface, protecting living organisms from its damaging effects.
10.
This happens when climate changes due to global warming.
Correct Answer
D. All of these
Explanation
The given answer, "All of these," is correct because when climate changes, several effects can occur. More frequent typhoons can result from changes in weather patterns, as warmer ocean temperatures can fuel the formation of these storms. Additionally, climate change can cause ice to melt, leading to the disappearance of islands. Furthermore, as the Earth's temperature rises, the water in the oceans warms and expands, contributing to sea level rise. Therefore, all of the mentioned effects can happen when climate changes.
11.
Which is NOT true about non-renewable resources?
Correct Answer
C. They cannot be stored for future use.
Explanation
Non-renewable resources are finite or non-sustainable, meaning that they cannot be replenished at a rate that matches their consumption. Their exploitation and use will eventually lead to their exhaustion because they are not being replaced. Additionally, these resources take millions of years to form, further emphasizing their limited availability. However, it is not true that non-renewable resources cannot be stored for future use. In fact, many non-renewable resources, such as fossil fuels, are commonly stored and used as energy sources when needed.
12.
It refers to the extreme warming of the central and eastern Pacific.
Correct Answer
A. El Niño
Explanation
El Niño refers to the extreme warming of the central and eastern Pacific. During an El Niño event, the ocean temperatures in this region become unusually warm, disrupting the normal weather patterns and leading to various impacts around the world. These impacts can include heavy rainfall in some areas, droughts in others, and changes in temperature and wind patterns. El Niño events typically occur every few years and can last for several months. Understanding and monitoring El Niño is important for predicting and managing its effects on weather and climate.
13.
What is the economic term to the exhaustion of raw materials within a region?
Correct Answer
C. Resource depletion
Explanation
Resource depletion refers to the economic term of the exhaustion of raw materials within a region. It signifies the consumption or utilization of natural resources at a rate that exceeds their renewal or replacement. This phenomenon can have severe consequences for an economy, as it can lead to scarcity, increased costs, and a decline in the availability of essential resources. Therefore, resource depletion is the correct term to describe the scenario of the exhaustion of raw materials within a region.
14.
This refers to the atmospheric disturbance and recurrent ocean warming.
Correct Answer
A. El Niño Southern Oscillation
Explanation
El Niño Southern Oscillation (ENSO) refers to the atmospheric disturbance and recurrent ocean warming. It is a climate pattern that occurs across the tropical Pacific Ocean, affecting weather conditions worldwide. During El Niño, the ocean temperatures in the eastern Pacific become warmer than usual, leading to changes in atmospheric circulation and rainfall patterns. La Niña, on the other hand, is the opposite phase of ENSO, characterized by cooler ocean temperatures in the eastern Pacific. Both El Niño and La Niña have significant impacts on global weather patterns, including the intensity and frequency of typhoons, hurricanes, and cyclones. Therefore, the correct answer is El Niño Southern Oscillation.
15.
It is the "mark" that you leave in the environment each time you use fossil fuel.
Correct Answer
carbon footprint
Explanation
The term "carbon footprint" refers to the impact or amount of greenhouse gases, particularly carbon dioxide, that are emitted into the atmosphere as a result of an individual, organization, or activity. It is essentially the measure of the environmental impact caused by the use of fossil fuels. The more fossil fuels are used, the higher the carbon footprint, indicating a greater contribution to climate change and environmental degradation.