World Geography
The Harmattan is

wind that blows during the dry season from December to February
tertiary wind that carry great quantities of fine dust from the Sahara
All of these
cool, extremely dry wind that forms over the Sahara and blows westward or south-westward to the Af

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World Geography
Which among the following principle is used by Bats?

law of diffraction
law of reflection
RADAR (Radio Detective & Ranging
SONAR (Sound Navigation & Ranging

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World Geography
Which among the following statements is/are correct about Fronts?The boundary zone when two different type of air masses meet is called a Front.Differences in terms of tem­perature, humidity, precipitation, cloudiness, and wind direction are experienced along different fronts.Occluded front is formed when cold front over­takes warm front and warm air is completely displaced from the ground surfaceSelect the correct code from the options given below:

None of these
Only 1
1, 2 & 3
Only 1 & 2

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