What percentage of energy used in the U. S. is
produced from fossil fuels?

What is a compass? how does it work

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.

What is the largest river in the united states?