1.
Which of the following would help pollution to occur?
Correct Answer
D. All of the above.
Explanation
The correct answer is "All of the above" because burning fossil fuels in cars and trucks releases harmful pollutants into the air, spilling chemicals in rivers contaminates the water and harms aquatic life, and oil spills in the ocean cause extensive damage to marine ecosystems. Therefore, all three actions contribute to pollution in different environments.
2.
Pollution can also come from natural resources. What is one natural resource that can cause pollution?
Correct Answer
B. Forest fires
Explanation
Forest fires can cause pollution because they release large amounts of smoke, ash, and harmful gases into the atmosphere. These emissions can contribute to air pollution and have negative effects on air quality, human health, and the environment. Forest fires can also lead to the destruction of vegetation and habitats, further impacting the ecosystem. Therefore, forest fires are a natural resource that can cause pollution.
3.
When we drive, gases and bits of dust go into the air. What then forms?
Correct Answer
A. Acid rain
Explanation
When we drive, the emissions from our vehicles release gases and particles into the air. These pollutants can react with water vapor and other chemicals in the atmosphere, forming acidic compounds. These compounds can then combine with rainwater, resulting in acid rain. Acid rain can have harmful effects on the environment, including damaging plants, trees, and bodies of water. Therefore, the formation of acid rain is a direct consequence of the gases and dust released during driving.
4.
What happens when people dump wastes from homes or factories into oceans, lakes, or rivers?
Correct Answer
D. B and C
Explanation
When people dump wastes from homes or factories into oceans, lakes, or rivers, the waste flows to other parts of the world, causing water pollution. This pollution, in turn, has a detrimental effect on the animals and plants living in these bodies of water, ultimately leading to their death. Therefore, the correct answer is B and C.
5.
How do people contribute to land pollution?
Correct Answer
A. Littering
Explanation
People contribute to land pollution through littering. When individuals dispose of waste improperly by throwing it on the ground instead of using designated trash bins, it leads to the accumulation of garbage in public spaces. This litter can include various materials such as plastic bottles, food wrappers, cigarette butts, and more, which take a long time to decompose and can harm the environment. Littering not only spoils the appearance of the land but also poses a threat to wildlife, as animals may ingest or become entangled in the litter.
6.
Why is it important to conserve water?
Correct Answer
A. We all need it to survive
Explanation
Water is essential for our survival as human beings. Our bodies are made up of about 60% water, and we rely on it for various bodily functions such as digestion, circulation, and temperature regulation. Additionally, water is crucial for growing crops and sustaining ecosystems. By conserving water, we ensure that there is an adequate supply for everyone's needs, both now and in the future.
7.
What is one way to reduce air pollution?
Correct Answer
A. Carpool
Explanation
Carpooling is a valid way to reduce air pollution because it involves sharing a ride with others, which reduces the number of vehicles on the road. By carpooling, there will be fewer cars emitting pollutants into the air, thus helping to reduce air pollution.
8.
Three ways to conserve resources start with the letter R. What are they?
Correct Answer
C. Reduce, reuse, recycle
Explanation
The three ways to conserve resources start with the letter R are reduce, reuse, and recycle. This means that in order to conserve resources, it is important to reduce the amount of waste produced, reuse items whenever possible, and recycle materials instead of throwing them away. By following these practices, we can minimize our impact on the environment and make more sustainable choices.
9.
We throw away enough trash every day to fill 63,000 garbage trucks
Correct Answer
A. True
Explanation
The statement is true because it highlights the fact that the amount of trash generated daily is enormous, enough to fill 63,000 garbage trucks. This emphasizes the large scale of waste production and the need for effective waste management and recycling practices to reduce environmental impact.
10.
Every year in the U.S. factories release over 3 million tons of toxic chemicals into the land, air and water.
Correct Answer
A. True
Explanation
Factories in the U.S. release over 3 million tons of toxic chemicals into the land, air, and water every year. This indicates that the statement is true. The release of such a large amount of toxic chemicals can have detrimental effects on the environment and human health. It is important to regulate and minimize the release of these chemicals to protect the environment and ensure the well-being of the population.