AP BIOLOGY

Detailed explanation-1: -Temperature. During the day, desert temperatures rise to an average of 38°C (a little over 100°F). At night, desert temperatures fall to an average of-3.9°C (about 25°F). At night, desert temperatures fall to an average of-3.9 degrees celsius (about 25 degrees fahrenheit).

Detailed explanation-2: -Deserts are arid ecosystems that receive fewer than 25 centimeters (10 inches) of precipitation a year. Death Valley, California, above, receives fewer than 5 centimeters (2 inches) of rainfall every year. However, Death Valley’s infrequent rain and extreme temperatures can impact the landscape.

Detailed explanation-3: -Dry Climates Regions lying within the dry climate group occur where precipitation is low. There are two dry climate types: arid and semiarid. Most arid climates receive 10 to 30 centimeters (four to 12 inches) of rain each year, and semiarid climates receive enough to support extensive grasslands.

Detailed explanation-4: -Desert areas are characterised by low rainfall, scanty vegetation and extreme temperatures. Depending on the temperatures, there can be hot deserts or cold deserts. The Sahara desert is the hottest and the world’s largest desert.

Detailed explanation-5: -A desert is a vast area of flat land covered with sand. Small hills of sand are called sand dunes. The climate of desert is very hot and dry throughout the year. Rainfall is scanty which leads to shortage of water.