With reference to the climate of the Sahara Desert, consider the following statements: 1. The moisture evaporates faster than it accumulates. 2. The sky is typically overcast with heavy clouds. 3. Nights remain hot with temperatures staying above 30°C. Which of the statements given above is/are correct?

The correct option is (a). Explanation The Sahara Desert experiences a Hot Desert Climate, characterized by extreme aridity, scorching heat during the day, and significant diurnal temperature variations due to the lack of atmospheric moisture and cloud cover. Statement-wise Analysis: - Statement 1 is Correct: The climate is scorching hot and parched dry. The rate of evaporation is extremely high and consistently exceeds the rate of moisture accumulation (precipitation). This moisture deficit is the primary definition of an arid environment. - Statement 2 is Incorrect: The sky in the Sahara is typically cloudless and clear. The lack of humidity prevents the formation of heavy cloud cover, which allows for intense solar insolation during the day and rapid terrestrial radiation at night. - Statement 3 is Incorrect: While days are extremely hot with temperatures often rising above 50°C, the nights do not remain hot. Due to the clear skies and dry air, heat escapes rapidly into space once the sun sets. Consequently, nights can be freezing cold with temperatures dropping near or below 0°C. Key Takeaway: Hot deserts are characterized by clear skies, evaporation rates exceeding precipitation, and extreme diurnal temperature ranges where days are intensely hot and nights are significantly cold.

With reference to the climate of the… - NCERT Class 7 Geography MCQ

NCERT Class 7 Geography — Chapter 2: Life in the Deserts

mcqmedium

With reference to the climate of the Sahara Desert, consider the following statements:

The moisture evaporates faster than it accumulates.
The sky is typically overcast with heavy clouds.
Nights remain hot with temperatures staying above 30°C.

Which of the statements given above is/are correct?

NCERT textbook question

From NCERT The Earth Our Habitat · Page 2

Options

A1 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (a).

Explanation

The Sahara Desert experiences a Hot Desert Climate, characterized by extreme aridity, scorching heat during the day, and significant diurnal temperature variations due to the lack of atmospheric moisture and cloud cover.

Statement-wise Analysis:

Statement 1 is Correct: The climate is scorching hot and parched dry. The rate of evaporation is extremely high and consistently exceeds the rate of moisture accumulation (precipitation). This moisture deficit is the primary definition of an arid environment.
Statement 2 is Incorrect: The sky in the Sahara is typically cloudless and clear. The lack of humidity prevents the formation of heavy cloud cover, which allows for intense solar insolation during the day and rapid terrestrial radiation at night.
Statement 3 is Incorrect: While days are extremely hot with temperatures often rising above 50°C, the nights do not remain hot. Due to the clear skies and dry air, heat escapes rapidly into space once the sun sets. Consequently, nights can be freezing cold with temperatures dropping near or below 0°C.

Key Takeaway:

Hot deserts are characterized by clear skies, evaporation rates exceeding precipitation, and extreme diurnal temperature ranges where days are intensely hot and nights are significantly cold.

Your note

More from Chapter 2: Life in the Deserts

The discovery of skeletons of which one of the following aquatic creatures in the Sahara Desert suggests a humid past?

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With reference to the people of the Sahara Desert, consider the following statements: 1. The Bedouins and Tuaregs are settled agricultural communities. 2. They rear livestock such as goats, sheep, camels, and horses. 3. They wear heavy robes as protection against dust storms and hot winds. Which of the statements given above is/are correct?

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With reference to the Sahara Desert, consider the following statements: 1. It covers a large part of North Africa. 2. It touches exactly three countries. 3. Its total area is more than double the area of India. Which of the statements given above is/are correct?

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Which of the following statements regarding the 'Tuaregs' is true? 1. They are traditionally nomadic tribes. 2. They are strictly prohibited from working in the oil and gas sector. 3. They act as guides to foreign tourists. Select the correct answer using the code given below:

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In the context of Ladakh, what is 'Shahtoosh'?

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