What are the 3 main river systems in the middle east?
a) the seine, the thames, and the nile.
b) the amazon, orinoco, and euphrates.
c) the nile, the zambezi, and the tigris.
d) the tigris, euphrates, and nile.

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.