First one who answers this will be marked brainliest, , and 5 stars will be !

what do scientists compare to date fossil and rock samples?

a) isotopes

b) half-lifes

c) lifetimes

d) radioactivity

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?

What happens during the experiment stage of the scientific method