Which of the following statements is not correct?
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Deserts typically receive less than 25 cm of rainfall in a year.
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Hot deserts of the world are found in the tropical regions between 15o and 30o north and south latitudes.
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Rainfall generally increases away from the equatorial region both northwards and southwards up to about 30o north and south.
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Mediterranean regions generally do not receive much rainfall in summers.
'Rainfall generally increases away from the equatorial region both northwards and southwards up to about 30o north and south' is an incorrect statement. The equatorial regions receive more rainfall because equatorial regions are located in Torrid Zone, which receives more heat than other zones, and tropical regions are located near the equator. Due to the heat, water evaporates much more times than other areas, thus bringing more rainfall.