identify how you UV rays x-rays and gamma rays are utilized in the following purposes commercial establishments and medical purposes

Me plzzz what is the ratio of water than falls on land as compared to the amount that falls onto the oceans? what role do clouds play in regulating earth’s energy balance? me plzzz

Which measure of humidity, relative humidity or dew point, best describes the actual quantity of water vapor in a mass of air

The ethnic conflicts in darfur have led to an attempt to destroy a whole people known as