Why is the earth's surface warmer than the surface of other planets, like mars?
a. the earth's atmosphere releases heat.
b. the earth's surface receives less energy from the sun's rays.
c. the earth's rotation transfers energy more evenly.
d. the earth's atmosphere traps heat.

Urgent pls a. coal consumption levels off and remains flat. b. petroleum, natural gas, and renewables show an increase in consumption c. more nonrenewable resources continued to be consumed than renewable. d. there is little projected increase in nuclear energy use. e. carbon dioxide emissions are projected to decline as we approach 2040. global energy consumption is defined as the total energy used by an individual or organizations from around the world. use the graph above to analyze the projected energy consumption from now until 2040. which statements in the prompt apply? a) a, b, d b) b, c, d c) a, c, d d) a, b, c, d

This is the number of complete movements of a wave per second.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?