Articles > Biosphere definition – quiz Biosphere definition – quiz Quiz Choose the best answer. 1. The part of the Earth where living things exist Lithosphere Hydrosphere Biosphere 2. Which of the following is NOT true about biosphere? Non-living things are included in a biosphere. A biosphere encompasses all the Earth's ecosystems. The biotic components of biosphere includes the land, air, and water. 3. The component of the biosphere that includes the oceans and seas Lithosphere Hydrosphere Atmosphere 4. The terrestrial component of the biosphere Lithosphere Hydrosphere Atmosphere 5. The microscopic living components of the biosphere Plants Animals Microorganisms Send Your Results (Optional) Your Name To Email Time is Up!