How has geosphere changed over time

Scientific theories of change in the Geosphere are based on physical evidence such as rocks, fossils, and land forms, and theoretical evidence such as the Principle of Uniformitarianism and the Law of Superposition. 

when cloud cover increases then the suns ray's which provides the earth with light and warmth gets covered due to the due to the suns ray's being blocked, the temperature in that region

therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

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