World Geography
The main types of air mass include maritime tropical(mT) maritime polar(mP) maritime arctic(mA)continental polar(cP)

I, II, III
I, IV
All of these
I, II

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

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

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