In a nuclear accident such as occurred at Chernobyl, the long-term biological damage is caused by
A) nuclear fusion occurring within the biological cells.
B) the thermal energy produced by radioactive decay within biological cells.
C) alpha, beta, and gamma particles passing through biological cells.
D) nuclear fission occurring within the biological cells.
E) the high energy vibrations of the water molecule that are caused by radioactive isotopes.
Question 2
A ball tossed vertically upward reaches its highest point and then falls back to its starting point. During this up-and-down motion the acceleration of the ball is always
A) in the direction of motion.
B) opposite its velocity.
C) directed upward.
D) directed downward.
Deformation in human bones caused by (a) rickets and (b) osteoporosis.
Blocked at every turn by congressional Republicans who hated him, President Obama turned to techniqu
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Biological Diversity: Complex patterns of diversity
When dry, the long fruits (pods) of the California poppy (Eschscholzia californica) split open sudde