spheres 1 and 2 both carry positive charge and are connected by insulating strings to a ceiling. when the two spheres hang in equilibrium, they hang at the same height, but sphere 1's string is more vertical. based on this observation, what can be assumed about the charges of the two spheres and why?

The way I understand the situation, it tells you that the mass of Sphere-1 is greater than the mass of Sphere-2, but it doesn't tell anything about the charges.  

Whatever the amounts of the charges are, the repelling forces on the spheres are equal.

before we can answer, we have to see the choices that are printed there with the question.   that's the only way we can point you to the correct one.

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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