Cold, dry air affecting the northern united states in winter often comes from

a. maritime polar air masses.

b. maritime tropical air masses.

c. continental polar air masses.

d. continental tropical air masses.

Like subsistence farmers, pastoral nomadic groups depend on a. seasonal variations of precipitation b. government subsidies for their products c. enforcement of strict land boundaries d. annual grain production

The Amazon River can be found in: North America Europe Africa South America Asia

Which of the following countries has an authoritarian military government, holds fraudulent elections, and allows few democratic freedoms? A. the Philippines B. Pakistan C. India D. Burma (Myanmar)

Describe the nebula theory for the formation of our solar system (in detail)

Which country considers the president of france one of its two princes?

The Pacific Ocean, Sea of Japan, and Philippine Sea border this Asian country. China Taiwan Japan Korea

Where is new crust formed and where does old crust go?

Where was Impressionism centered? Spain Portugal France Italy

List the weather instruments and write their uses. Elements Weather instruments Uses of weather instrument 1) Temperature 2) Air pressure 3) Wind 4) Rainfall

What are the references that you need to know when you are searching the place where the Amozon river and Amazon Rainforest would meet?