10 ways how man can use the environment around him

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite

How does central place theory explain patterns in the size and distribution of cities?

Would you rather live in a society that offers more economic freedom or economy equity? explain why and defend your answer.