What percentage of the world’s land area is covered by arid climates (BW) and where are they located throughout the world?
What will be the ideal response?
ANSWER: Arid climates (BW) occupy about 12 percent of the world’s land area. This climatic type is found along the west coast of South America and Africa and over much of the interior of Australia. Also, a swath of arid climate extends from northwest Africa all the way into central Asia. In North America, the arid climate extends from northern Mexico into the southern interior of the United States and northward along the leeward slopes of the Sierra Nevada. This region includes both the Sonoran and Mojave deserts and the Great Basin.?
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The U.S. national park system includes ____ major national parks.
A. 12 B. 28 C. 58 D. 100 E. 110
Which of the following is not a characteristic of an actively erupting volcano?
A) Totally covered in a fresh blanket of clean, white snow B) Billowing ash column rising into the sky C) Glowing lava flows moving down mountain slopes D) Rapidly melting glaciers/snowpack producing massive mudflows
Which of these coastal features can create lagoons?
a. tombolos b. notches c. barrier islands d. marine terraces e. swashes
Which of the following is TRUE?
A) Natural sources of air pollution are not a concern in terms of human health. B) Though infrequent, natural events that produce air pollution may cover large areas. C) There is no reason to be concerned about natural sources of air pollution. D) Natural sources of air pollution are a relatively new occurrence.