How do land changes give evidence of continental drift? List 2 examples of rocks or desert.

Nh3 +02-no + h20 is unbalanced what is the balanced equation

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

What materials must dams have to produce electricity, and what must occur?