What natural resources makes many nations of this region wealthy?

1. diamond

2. oil

3. salt

4. uranium

What do chunks of continential glaciers produce when they break off from the edges of ice sheets?

The metric base unit liter is used to measure

Mexico is directly south of which country

What must be present for erosion to occur

Which soil layer consists of weathered bedrock material that has not yet been leached or had significant accumulation?

What does acid rain do to the environment?

Passenger boats were attacked before the US became involved in WWI. True False

A tsunami wave that is 2 feet

Which phrases describe air pressure

Write a 125-word essay about the pollution of North America's atmosphere. In your essay, include: The causes Things people can do to reduce pollution Things the government can do to reduce pollution