World Geography
The light of distant stars is affected by

both (a) and (b)
interstellar dust
None of these
the earth's atmosphere

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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 2
Both 1 & 2
Only 1
Neither 1 & 2

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