1.
How many major deserts are there in the United States?
Correct Answer
C. 4
Explanation
There are four major deserts in the United States: the Great Basin, Mojave, Sonoran, and Chihuahuan. These diverse ecosystems, each with its unique characteristics and species, collectively form the North American Desert, a testament to the varied landscapes found within the United States.
2.
Which desert is the largest in North America?
Correct Answer
D. Chihuahuan
Explanation
The Chihuahuan Desert, spanning through Eastern Arizona, Southern New Mexico, portions of Southwest Texas, and then far South into Mexico’s Central Highlands, is the largest desert in North America. Its size and geographical spread contribute to its diverse ecosystem, making it a fascinating subject of study for ecologists and nature enthusiasts alike.
3.
What is the largest desert located entirely within the United States?
Correct Answer
A. Great Basin
Explanation
The Great Basin Desert, covering around 190,000 square miles, holds the title for the largest desert located entirely within the United States. Its vast expanse, mostly within Nevada and crossing into parts of Idaho, California, Utah, and Oregon, offers a unique blend of fauna and flora adapted to its arid conditions.
4.
Which is the smallest of the four major American Deserts?
Correct Answer
B. Mojave
Explanation
The Mojave Desert, though the smallest of the four major American Deserts, is an immense and impressive sight to behold. Its location, spanning parts of California, Nevada, Utah, and Arizona, offers a diverse landscape that challenges the common perception of deserts as barren wastelands.
5.
Which desert is also called the Desierto de Altar?
Correct Answer
C. Sonoran
Explanation
The Sonoran Desert, which covers 120,000 square miles across Southeastern California, Southwestern Arizona, and portions of the Mexican states of Baja California Sur, and Sonora, is also called the Desierto de Altar. Its vast expanse and diverse ecosystems make it a hotspot for biodiversity.
6.
Where does the North American Desert stretch from?
Correct Answer
A. Southern Oregon to northern Mexico
Explanation
The North American Desert spans a vast region, extending from the southern parts of Oregon and Idaho in the United States down to the northern areas of Mexico. This expansive desert landscape encompasses diverse ecosystems characterized by arid and semi-arid conditions, with sparse vegetation and limited precipitation.
7.
What is the main characteristic of the North American Desert’s climate?
Correct Answer
C. Overall aridity
Explanation
The climate of the North American Desert is characterized by overall aridity, which means that there is a persistent lack of moisture in the air and on the ground. This arid condition is primarily due to the fact that the region experiences an excess of potential evaporation over precipitation. As a result, the North American Desert receives minimal rainfall, and the little precipitation it does receive often evaporates quickly due to the high temperatures and dry air.
8.
Who established the legend of a “Great American Desert”?
Correct Answer
C. StepHen H. Long
Explanation
The legend of the "Great American Desert" originated in the early 1820s, largely due to the detailed accounts provided by an expedition led by the American pioneer explorer and engineer, Stephen H. Long. During this expedition, which took place between 1819 and 1820, Long and his team explored the central region of what is now the United States.
9.
Which desert is classified as a cold mid-latitude desert?
Correct Answer
B. Great Basin Desert
Explanation
The Great Basin Desert is categorized as a cold mid-latitude desert primarily due to its geographical location and climatic characteristics. One key factor is its rain shadow effect, caused by the Sierra Nevada and Cascade mountain ranges to the west, which block moisture-laden air from the Pacific Ocean. As a result, precipitation is limited, and much of the region receives less than 10 inches (25 cm) of rainfall annually.
10.
Which desert is sometimes considered an extension of the Great Basin Desert?
Correct Answer
A. The Red Desert of southern Wyoming
Explanation
The Red Desert of southern Wyoming is often regarded as an extension of the Great Basin Desert due to similarities in their geological and climatic characteristics. While the Great Basin Desert primarily spans parts of Nevada, Utah, Oregon, Idaho, and California, the Red Desert is located in the southwestern portion of Wyoming.