Questions and Answers
Which of the following is an example of kinetic energy?
Flowing water in a stream.
According to the law of conservation of mass, what happens to matter during physical and chemical changes?
Matter is conserved and cannot be created or destroyed.
What is the main factor that determines the severity of a pollutant's harmful effects?
The chemical nature of the pollutant.
Which of the following is an example of potential energy?
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What type of pollutant is DDT classified as?
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Which of the following is an example of electromagnetic radiation?
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What are the subatomic particles that make up an atom?
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What is the atomic number of an element?
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What are isotopes?
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What is the difference between high-quality and low-quality matter?
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What is material efficiency or resource productivity?
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What is the difference between a physical change and a chemical change?
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