Ques:Q: What is the least dangerous radioactive decay? Choices: - beta decay - gamma decay - zeta decay - alpha decay A:

Ans:alpha decay
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Ques:Q: What term means the minimum energy required in order for a collision between molecules to result in a chemical reaction? Choices: - maximum energy - solar energy - depletion energy - activation energy A:

Ans:activation energy
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Ques:Q: Biomass is the mass of biological what? Choices: - tissues - proteins - lipids - organisms A:

Ans:organisms
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Ques:Q: The longest period of daylight hours occurs at the beginning of what season? Choices: - winter - autumn - spring - summer A:

Ans:
summer
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