2. It is easy to open the lid of a can by using a spoon.

why it is easy to open the lid of a tin can with the help of a spoon handle. Because with a spoon handle, we have to effort less with a small force to open the lid of a can.

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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the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this