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A5956E5144A54D9F8E2421BBF678BB57

A5956E5144A54D9F8E2421BBF678BB57 - ECOLOGY REVIEW#3 I Water...

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ECOLOGY REVIEW #3 I. Water Cycle: A. WHERE and HOW does water change from water vapor into precipitation? Clouds (higher in the atmosphere where it is cold) Water vapor cools and condenses, meaning that the moleculesstick together and become droplets (Condensation). The droplets stick to dust particles and form clouds. When the droplet gets heavy, it falls as precipitation. B. Where can water be found on earth – list as many places as you can. On the surface of Earth - in bodies of water – lake, pond, river, ocean, reservoirs… Underground - in wells and aquifers Inside the cells of living things (plants, animals, etc.) Clouds Glaciers, polar ice caps, icebergs C. Complete each of the following statements: Precipitation is when water (in any form – liquid, solid, or gas) falls to earth. The majority of water on Earth is not usable by humans because it is saltwater (97% of the water on Earth is saltwater) Most of the freshwater on earth is found in iceburgs and glaciers (67% of the freshwater cannot be accessed by humans as it is frozen) A river/ocean/lake/pond/reservoir is an example of water on the surface. All living things contain water in their cells Water vapor is the word for water in its gas form.
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Cellular respiration is the process where water exits as a waste product from ALL living things. Transpiration is the process of tree leavesemitting excess water from their stomata. Water evaporates from Earth due to heat or increased temperatures (the sun). D. Briefly describe each of the following: 1. Surface water vs ground water Surface water – water that is on the surface of Earth – lakes, ponds, streams, rivers, oceans… A reservoir is built into a river and is part of surface water. Groundwater – water that is underground or below the surface of earth – includes aquifers and the water table (top of the aquifer). Water in a well is part of the groundwater. 2. Reservoir vs Aquifer A reservoir is part of a river (surface water) where water collects. A reservoir typically supplies areas with drinking water. A dam usually stops a river so the water can pool up and form the reservoir.
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