How are renewable fuels different from fossil fuels? A. Renewable fuels will eventually run out.

B. Renewable fuels can be used over and over.

C. Renewable fuels create a weaker form of energy.

D. Renewable fuels create a greater amount of pollution than fossil fuels.

Rocks that contain crystals that are roughly equal in size and can be identified with the unaided eye are said to exhibit a texture.

Which of the following can scientists estimate geologic time? a. observing rock sequences b. radiometric dating c. comparing fossils d. all of these

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit