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
Neither 1 & 2
Only 2
Both 1 & 2

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World Geography
The sequence of layers of atmosphere from earth to upwards is

troposphere, tropopause, stratosphere, mesosphere , exosphere, thermosphere, thermopause
troposphere, tropopause, stratosphere, thermosphere, exosphere
troposphere, stratosphere, stratopause, mesosphere , ionosphere
troposphere, tropopause, stratosphere, stratopause, mesosphere, mesopause, ionosphere(thermosphere, thermopause, exosphere)

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World Geography
The Harmattan is

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

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