<span>B. The first plants lived on the land.</span>
I think this picture is very helpful
Essentially 100% of the energy that fuels the earth comes from the sun. To maintain a constant global average temperature, all of the sun's radiation that enters Earth's atmosphere must eventually be sent back to space. This is achieved through Earth's energy balance.
B. They decrease. As more we use the sources of nature, the less is left.
