Deserts Flashcards

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1
Q

What is a characteristic feature of hot deserts?

A

They receive direct sunlight all the time.

This constant exposure to sunlight contributes to high temperatures during the day.

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2
Q

Why is it much colder at the poles compared to deserts?

A

The sun’s energy has a longer distance to travel and a smaller area to penetrate at the poles.

This results in less intense heating compared to desert regions.

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3
Q

What happens to heat in deserts at night?

A

Heat escapes quickly.

This leads to significant drops in temperature, creating harsh conditions.

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4
Q

Name one reason why all deserts are dry.

A

Hadley cell.

This atmospheric circulation pattern creates arid conditions in desert regions.

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5
Q

What is the second reason why deserts are dry?

A

Western edge of continents.

These areas often experience less rainfall due to geographical positioning.

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6
Q

What is the third reason contributing to desert dryness?

A

Rain shadow.

This occurs when mountains block moisture-laden winds, leading to dry conditions on the leeward side.

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7
Q

What is the fourth reason for desert dryness?

A

Inland location.

Being far from oceans or large bodies of water reduces the availability of moisture.

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8
Q

Fill in the blank: Changes in temperature can be very ______ for a human.

A

harsh.

Extreme temperature fluctuations can pose health risks.

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