Answer:
The rates of decay of radioactive elements
Explanation:
The age of a rock in years is called its absolute age. Geologists find absolute ages by measuring the amount of certain radioactive elements in the rock. When rocks are formed, small amounts of radioactive elements usually get included.
The first question's answer is
Answer:
Ⓑ Both plants and animals release energy from glucose/sugar in cellular respiration.
There are eight bonded electrons in this molecule! :)
