A. A flood would have the most positive effect
Answer: A, C, E
Explanation:
Gamma rays, Microwaves, and Radio waves
D I might be wroung .....i think this so the answer because biotic are all living things and bacteria is living
Explanation:
The kinetic energy of an object is given in terms of its mass and object as :

An object with more mass has more kinetic energy. An object with less mass, if both objects are moving at the same speed, in opposite directions, will have less kinetic energy. The square of v will give positive number.
False because absolute magnitude is the real magnitude but apparent is not