What form of energy is used to make photosynthesis happen? a. solar energy b. electron energy c. proton energy d. chemical energy

What best explains the inability for life to exist in earth early atmosphere

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.

Urban areas use energy than rural areas, mostly because so many more people live there. a) solar power b) more; in total c) less; in total d) an electric furnace