Help again. please quick

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.