I would say keep the soil from eroding and doesn't let it get dried out so fast.
Oxygen, water, some type of resources to build, and food to eat
Answer:
Radiometric dating methods
Explanation:
Geologists usually use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon to find the age of fossils.
Answer: you can recognize a plant cell by its rigid cell wall and by the fact that it contains fluid filled space known as a vacuole.
Explanation: hope this helps!