Which of the following is not a disadvantage of using wind power?

A.

Turbines are expensive.

B.

Birds often fly into fan blades.

C.

Energy production decreases at night.

D.

Turbines are only effective in specific areas.

Ecosystems are in danger from all of the following except

Where has the Ebola virus infected humans?

Where did the earliest humans lived

The grasslands of the midwestern United States have been grazed and farmed so that almost no grasslands remain with their original species of plants and animals. How could people in the Midwest determine what kind of natural ecosystem they are in? A.

Which of these descriptions describe desertification

Discuss and describe examples of bias that you have encountered in the media through the class discussion below. Remember that media includes newspapers, television, radio, magazine, Internet websites, and other forms of mass comunication

If the sky's was raining cats and dogs which one would you grab first and what breed?

This is the chinese region that was a military and political battleground between japan

Name two directions a river can erode in.

Most of the helium in the universe is believed to be produced in