In order to reduce the need for fossil fuels, scientists are studying power sources such as wind, tides, and a. natural gas. b. coal. c. propane. d. falling water.

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.