If two proteins have the same molecular weight, are they necessarily the same protein? explain?

No. Different combinations and configurations of amino acids can have the same molecular weight but form different proteins.

Well proteins are created, from rna, and nitrogenous bases. So seemingly they may seem similar but could be different. This is from a genetic standpoint

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.