The appearance of banded iron layers in the rock record between 1.08 and 3.8 billion years ago reflect the alteration of oxygen-rich and oxygen-poor conditions in the ocean at that time.

True or False

How does the atmosphere affect the geosphere after an earthquake?

What causes low rainfall in the Gobi Desert?

Largest city and former capital of nigeria

Which process forms ridges and valleys?

What part of earth is solid and extreamly hot

What role do ocean currents play in a crocodile's migration?

Though the population of Arab Southwest Asia is small, this region still plays an important part in world affairs. Why? A. Oil wealth and their role in the Arab-Israeli peace process B. They have democratic governments and strong trade policies. C.

What is considered one of the biggest threats to folk cultures around the world

What is erosion A) the melting of solid sheets of ice near the top of a mountain B) a natural event that happens quickly, such as lightning striking a tree C) the name given to the very slow change of rocks being worn down

Is tupac living on a island in canada. If not where do you think tupac would go if he wasnt dead?