Ques:Answer the following question given this paragraph: All radioactive decay is dangerous to living things, but alpha decay is the least dangerous. 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:Answer the following question given this paragraph: Summary A minimum energy (activation energy, Ea) is required for a collision between molecules to result in a chemical reaction. Plots of potential energy for a system versus the reaction coordinate show an energy barrier that must be overcome for the reaction to occur. The arrangement of atoms at the highest point of this barrier is the activated complex, or transition state, of the reaction. At a given temperature, the higher the Ea, the slower the reaction. The fraction of orientations that result in a reaction is the steric factor. The frequency factor, steric factor, and activation energy are related to the rate constant in the Arrhenius equation: k = Ae - Ea / RT. A plot of the natural logarithm of k versus 1/T is a straight line with a slope of Ea/R. Saylor URL: http://www. saylor. org/books. 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:Answer the following question given this paragraph: Biomass is the mass of biological organisms. It is usually used to describe the amount of organic matter in a trophic level of an ecosystem. Biomass production involves using organic matter ("biomass") from plants to create electricity. Using corn to make ethanol fuel is an example of biomass generated energy. Biomass is generally renewable. Q: Biomass is the mass of biological what? Choices: - tissues - proteins - lipids - organisms A:

Ans:organisms
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Ques:Answer the following question given this paragraph: 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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