World Geography
The Harmattan is

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

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

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

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World Geography
Which among the following period in the demographic history of India is called the Period of Stable Population?

1981 to Present
1891 to 1921
1951 to 1981
1921 to 1951

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