Question

The summer temperature of the Sahara desert varies from__________.
A. 35⁰c - 40⁰c
B. 40⁰ c - 45⁰c
C. 45⁰c – 50⁰c
D. 55⁰c – 60⁰c

Answer 1

Hint:
- The Sahara desert is the world's largest hot desert covering 9 million square kilometres, that is, 31% of Africa.
-It is located on the African continent.

Complete Answer: The Sahara is affected by two climatic regimes:
a. dry subtropical climate in the north ,and
b. dry tropical climate in the south.

The dry subtropical climate is defined by rarely high annual and diurnal temperature ranges, cold to cool winters and hot summers, and two precipitation maximums. This type of climate is affected by stable high-pressure cells centred over the Tropic of Cancer.

The dry tropical climate is defined by a strong annual temperature cycle observing the declination of the sun; mild, dry winters; and a hot dry season foregoing variable summer rains. This type of climate is affected by the same high-pressure cells, but it is annually affected by the seasonal interchange of a stable continental subtropical air mass and a southerly, unstable maritime tropical air mass. The annual range in average daily temperatures in the dry tropical areas of the Sahara is nearly 31.5 °F .

The Sahara is the hottest desert in the world ;with one of the severest climates. The average annual temperature is 30°C, whilst the hottest temperature ever recorded was 58°C. The rainy season appears only for a short time period. Usually, the sky is pleasant and clear and the days are extremely hot. The temperature during the day may even rise up to 50 degree Celsius, and at nights it may be freezing cold with temperatures nearing zero degrees.​

Hence, the correct option is b. Rest all are irrelevant.

Note:
-The biome of the Sahara desert is arid and has shrubland. These biomes receive small amounts of precipitation annually. This causes hot and dry weather in the Sahara desert.
-Deserts are hot , mainly due to lack of water. When the sun shines on the ground, all of the absorbed sunlight goes into raising the ground's temperature. They are cold at night due to lack of water in the ground, and little water vapor in the air. Hence, most deserts can get relatively cool at night.
-Global warming is increasing in desert regions which is making the arid areas hotter and drier than before.