The use of is expected to increase in the future. a. coal b. natural gas c. renewable energy d. all of the above select the best answer from the choices provided a b c d

c. renewable energy

The sources of renewable energy expected to increase in future because renewable resources are those resources which can be replenished after a single use such as water, sunlight and wind these are abundantly present in nature. The demand of nonrenewable resources is increasing day by day due to increase population and the global energy needs. The availability of these resources is decreasing as a result of this renewable resources are used as a source of energy. Like tidal energy, wind energy and solar energy used for  the electricity generation by these resources going to fulfill the present as future energy needs.

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

condensation. good luck!