Tides clear the at the mouth of large river​

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.

The standard deviation of a population is 3.2.what is the margin of error? enter your answer in the box.

How did geography influence the settlement of early africa.