The current world population is A. 12 billion
B. 2 billion
C. 23 billion
D. 6 billion

Soil color only reflects the amount of organic matter present in soil.

What are mountains that divide european russia from asian russia?

Which of the following situations is an example of an internal migration? a. moving to mexico city, mexico b. moving to san diego, califormia c. moving to toronto, canada d. moving to london, england