Which of the following is needed for the nitrogen cycle

A) eutrophication

B) decomposers

C) transpiration

D) movement of earth's crust

What is the composition of the earth

Do spring tides only happen in the spring time?

Which country is the United States' largest trading partner?

What are phases of the moon? How are they caused?

What events occurs during the Mesozoic Era?

Aaron covered a pot of boiling water with a lid. The steam changed back to water as it hit the lid. What type of change (s) occurred

How do global winds affect the earth?

Why is the geographic location of Israel important

Tijuana and Mexicali: (A) are planning to participate in the maquiladora program. (B) are located just opposite the U. S. city of El Paso. (C) were among the first border cites to experience a growth surge. (D) are key cities in the south of Mexico.

Why are there so many diseases in the more impoverished nations in the world