David wants to live more sustainably and use a more environmentally friendly fuel source than the coal he currently uses to heat his home. which choice would be the most sustainable? a. switch from coal to natural gas b. switch from coal to oil c. switch from coal to solar power d. switch to coal with a lower sulfur content

How does human environment effect the biosphere

Study the picture of the ocean. which is the best example of an organism’s niche shown in the picture? a. the environment contains several of the same species of coral. b. the shallow area of the ocean meets the needs of the coral and the fish. c. the ocean has fish and coral that live in the same area. d. the coral take in food from the water and provide shelter for the fish.

Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false