I believe it would be to calculate the amount of C-14 atoms left. scientists began to find out how long an object has been decaying, this has to do with half lifes etc. and how long a specific mineral/elements half life is. they use this to calculate how old it is (not an exact age but it's very accurate.)
Answer:
B - amount of sunlight or water
Explanation:
This is because light is very important in the maintenance of plants. The rate at which plants grow and the length of time depends on the amount of light it receives
A.) Veins in the pulmonary circuit carry oxygen-rich blood
red blood cells are used to circulate oxygen through out the body, thus it is true.
Answer:do the wam wam Explanation: