1. Which of the following is NOT one of the four subsystems of the Earth? A. biosphere C. water sphere B. hydrosphere D. geosphere 2. All of the waters, including subsurface and atmospheric water comprise the Earth. Which geological subsystem best label the statement? A. the geosphere C. the biosphere B. the hydrosphere D. the atmosphere 3. Earth contains all living organisms including those on the land, in the water and air. Which subsystem best describes the statement? A. biosphere C. atmosphere B. hydrosphere D. geosphere 4. Which subsystem suits the statement, "Global ecological system interacting with each other"? A. biosphere C. hydrosphere B. geosphere D. atmosphere 5. What subsystem will network with biosphere for photosynthesis to take place? A. atmosphere C. hydrosphere B. geosphere D. biosphere 6. Oxygen, water vapor, nitrogen, and other gases help organism to survive. Which Earth sphere contain these materials? A. biosphere C. hydrosphere B. atmosphere D. geosphere 7. Which term is used to describe the thin layer of solid rock that makes up the outermost part of the Earth? A. core C. mantle B. crust D. biosphere 8. Among the subsystems, which is composed of a mixture of gases that surrounds the Earth? A. nitrogen C. biosphere B. atmosphere D. kingdoms 9. The atmosphere of the Earth is composed of ___ nitrogen and _____ oxygen and other gases. A. 0% and 100% C. 78% and 21% B. 21% and 78% D. 505 and 505 10. In what subsystem of the Earth are the rocks and mineral found? A. atmosphere C. hydrosphere 1 B. biosphere D. geosphere 11. What part of the Earth’s sphere make up hydrosphere? A. glaciers C. seawater and inland water B. groundwater D. all of the above 12. Which gas dominates the Earth’s atmosphere? A. CO2 C. N2 B. He D. O2 13.Ozone plays an important part for organisms to stay alive. To what sphere does ozone belong? A. atmosphere C. geosphere B. biosphere D. hydrosphere 14.Which answer best describes the role of the ozone layer? A. It traps heat from the sun to heat the planet. B. It protects the plants and animals on earth from receiving too much ultraviolet radiation. C. It cools the earth through the evaporation of water vapor D. It keeps the oxygen in the atmosphere closest to Earth and the nitrogen separated in the atmosphere. 15.Human actions greatly affect the Earth itself. Which of the following is an example of a human impact of the biosphere? A. littering C. water pollution B. air pollution D. littering, air and water pollution