World Geography
The ocean water is saline due to

volume of fresh water added by rainfall
salts are already present in sea water
both (a) and (b)
evaporation of its surface

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World Geography
Which kind of precipitation occurs when a front or boundary line is formed between two air masses of contrasting temperature?

Convectional
Cyclonic
Orographic
Frontal

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

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

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