Environmental Science > EXAM > Environmental Science Speedback #7 | 30 Questions with 100% Correct Answers | Updated & Verified (All)

Environmental Science Speedback #7 | 30 Questions with 100% Correct Answers | Updated & Verified

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Nearly all the energy on earth can be traced back to a. the tides. b. radioactivity. c. geothermal energy. d. the sun. - ✔✔D Photovoltaic cells are used to provide energy for all of the follo ... wing except a. passive solar heating systems. b. calculators. c. digital watches. d. space satellites. - ✔✔A Fountains of steam bursting from the earth are called a. biomass. b. hydroelectric. c. geysers. d. volcanoes. - ✔✔C Fossil fuels originated from a. plant and animal remains. b. wood or clay. c. rocks. d. heat and pressure. [Show More]

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