What is the average number of births women bear in their lifetimes known as? a. Total increase rate
b. Crude Death rate
c. Total fertility rate
d. Crude birth rate

How did the europeans design the national borders of africa? why?

The yellow river is also known as the huang he river? true or false

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