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

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

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World Geography
Which among the following statements is/are correct about Cenotes?Cenote is a natural pit or sinkhole resulting from the collapse of limestone bedrock that exposes groundwater underneath.Cenotes are commonly found on high altitude regions of the world.Select the correct code from the options given below:

Only 1
Only 2
Neither 1 & 2
Both 1 & 2

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