1) What subsphere concerns the Earth's structure?  a) Lithosphere b) atmosphere c) Hydrosphere d) biosphere 2) What subsphere concerns the water on the earth?  a) lithosphere b) atmosphere c) biosphere d) Hydrosphere 3) What isn't a part of the atmosphere?  a) troposphere b) Exosphere c) Metasphere d) Thermosphere 4) What are the two factors that build up biosphere  a) Biotic and Bionic factors b) Biotic and Abiotic factors c) Biotic and Biogesic factors d) Bonetic and Abiotic factors 5) What belongs to the hydrosphere?  a) Mineral water b) Ground water c) Ocean water d) Biome water

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