Water Cycle Ground Water Q And A

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  • Answer D) Condenses into clouds
  • 2. Water pollution can be caused by pesticides and______ used on farms.

Transcript

  • 1. GROUNDWATER /WATER CYCLE
  • 2.
    • The water cycle involves the process of evaporation, condensation, and precipitation.
  • 3.
    • Eventually, the water vapor changes back into tiny droplets of water .
    • It condenses, or changes from a gas to a liquid.
    • When the droplets become large and heavy enough, they fall back to Earth as rain or other precipitation.
    • Heat from the Sun causes water on Earth’s surface to evaporate, or change from a liquid to a gas, and rise into the atmosphere as water vapor.
  • 4. Multiple Choice
    • In the water cycle , evaporated water ___
    A) Precipitates as rain or snow C) Becomes groundwater B) Runs into lakes, streams, and oceans D) Condenses into clouds Answer D) Condenses into clouds
  • 5. Water Pollution
    • Air pollutants can drift into water or be washed out of the sky by rain.
    • Rain can wash land pollutants into waterways.
    • Pollution also enters water when people dump litter or waste materials into rivers, lakes, and oceans .
  • 6.
    • Some water pollutants poison fish and other wildlife, and can be harmful to people who swim in or drink the water.
    • For example, chemical pesticides and fertilizers sprayed on farmland can harm the insects that fish, turtles, or frogs rely on for food.
  • 7. Surface Water
    • Raw sewage and excess fertilizer contain large amounts of nitrogen .
    • Algal blooms are another water pollution problem.
    • If they are washed into a lake or pond, they can cause the rapid growth of algae.
  • 8.
    • Fish and other organisms can die from a lack of oxygen in the water
    • If they are washed into a lake or pond, they can cause the rapid growth of algae.
  • 9. Groundwater
    • Groundwater is water that collects between particles of soil and rock.
    • It comes from precipitation and runoff that soaks into the soil.
    • This water can flow slowly through permeable layers of rock called aquifers.
  • 10.
    • If this water comes into contact with pollutants as it moves through the soil and into an aquifer, the aquifer could become polluted.
    • Pollution can affect water that seeps underground.
    • Polluted groundwater is difficult—and sometimes impossible—to clean.
  • 11.  
  • 12. Complete the statement 2. Water pollution can be caused by pesticides and______ used on farms. Fertilizers Answer
  • 13. 1 2 3 4
  • 14. Short Answer
    • 3. Describe how Earth’s biosphere cycles water over and over.
    Water evaporates then forms clouds turns to rain and runs off to surface water and evaporates again. Answer
  • 15. Use the circle graph to answer the following questions. nitrogen oxygen Water vapor 0.0 to 4.0 pct. 21 pct 78 pct
  • 16. 4. About what percent of Earth’s atmosphere does water vapor make up? 0.0 to 4.0 percent Answer
  • 17. State the effects that would result in the following situations. 5. If farming area allowed no pesticides, what are 2 effects you might see? Answer Crops might suffer more damage from insects, but the soil and water would be less polluted. Essay
  • 18. State the effects that would result in the following situations. Essay 6. Explain how air pollution and land pollution can cause water pollution. Answer Rain can wash air pollution into water, air pollutants can drift into water, and rain can wash land pollutants into water.