Which phrases describe radioactive elements? check all that apply.
a-occur in nature
b-decay at a constant rate
c-have a consistent number of particles
d-have a half-life that determines their rate of decay
e-release energy and particles to maintain radioactivity

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

The term facultative anaerobe refers to an organism that