Which of the following issues is the most significant challenge facing the people of the Middle East today?

A. dust storms

B. freezing temperatures

C. earthquakes

D. water scarcity

What is a transportation barrier in China

New ecosystems have been created by human land use. True or False?

Which is not produced by condensation? A. fog B. dew C. clouds D. smog

Discuss how and why soil pH affects plant vegetation patterns, giving examples of plant communities associated with acidic and alkaline soils.

Where is the Strait of Gibraltar?

What is a specific example of a current discourse on the human-nature relationship.

When looking up at the sky/moon, what part of the sky will the sun/moon appear in

Choose the state and capital that border the east coast of the United States.

Trees in deciduous forest do what? A. Shed leaves during one season B. Grow in a warm Mediterranean climate C. Have needlelike leaves D. Grow in a climate that is cold year round

How many miles long is the great wall of china