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Which of the following is an INCORRECT statement?
Question



Which of the following is an INCORRECT statement?

A.

Katabatic winds flow down the mountain slopes.

B.

Katabatic winds are formed during clear nights.

C.

Anabatic winds are formed due to differential cooling of mountain slopes and free air.

D.

Anabatic winds are formed during clear days.

Correct option is C


Katabatic Winds:
· Katabatic winds are downslope winds caused by the cooling of air at higher elevations.
· They typically occur during clear nights when radiative cooling causes dense, cold air to descend along mountain slopes.
· Statements (a) and (b) are correct.
Anabatic Winds:
· Anabatic winds, also known as upslope winds, occur during clear days when the sun heats the mountain slopes.
· This heating causes the air near the slopes to rise, creating upslope wind movement.
· Statements (d) is correct.
Incorrect Statement:
· Statement (c) is incorrect because anabatic winds are not caused by differential cooling; rather, they are caused by the differential heating of mountain slopes and the air above.
Information Booster: 1. Katabatic Winds:
· Examples: Mistral (France), Santa Ana (USA).
· Stronger at night and in winter.
2. Anabatic Winds:
· Common during sunny afternoons in mountainous regions.
· Important for gliders and paragliders.
3. Differentiation:
· Katabatic Winds: Cool air flows downward.
· Anabatic Winds: Warm air rises upward.
4. Local Effects:
· Influence microclimates in valleys and mountain ranges.
5. Formation Mechanism:
· Katabatic: Radiative cooling at night.
· Anabatic: Solar heating during the day.
Additional Knowledge: · Katabatic and Anabatic Dynamics:
· Katabatic winds can lead to frost pockets in valleys due to cold air pooling.
· Anabatic winds can create cloud formation along ridges due to moist air being lifted.
· Practical Impacts:
· Katabatic winds are hazardous for aviation due to turbulence.
· Anabatic winds help in slope agriculture by maintaining airflow.
· Other Examples of Katabatic Winds:
· Bora (Adriatic Sea), Greenland winds, Antarctic katabatic winds.
· Anabatic Winds in Ecosystems:
· Help in transporting seeds and insects uphill.

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