What type of gases holds in heat and keeps the earth at a moderate temperature?

a. primary gases

b. ozone layer

c. trace gases

d. greenhouse gases

According to the preamble, what is the trade agreement's purpose? Select this link to learn about a trade agreement between the United States and Australia. Read the preamble of the agreement.

4. What landform do all the states with silver deposits have in common?

Which of the following is the best example of an interurban?

Who was allowed to vote and take part in Athens' democratic government? What groups of people was not permitted to vote or take part in the political process?

why might someone want to flee to afghanistan to seek a home in a new country

The climate of the United States can be best Described as. A. mostly arid B. mostly tundra C. Mostly Temperature D. Mostly tropical

Who is Nathaniel Greene

Who was one of the founders of the location-sharing site Foursquare? Dennis Crowley Aaron Swartz Josh Williams Scott Raymond Done answer A.

What are dry docks and what happens there? (3)

A boy wins a trip. The first thing he notices when he arrives is the cold temperatures and the thick coniferous forests. It snows during his visit. The area averages 35cm to 100 cm of precipitation per year.