Study

Water cycle

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  • What is erosion?
    Erosion is a change of the Earth's surface when the soil is carried away by the rain.
  • ____________ is the continuous movement of water from the Earth.
    Water cycle
  • Mention 1 example of precipitation besides rain.
    snow / hail / sleet
  • Water change from a liquid to a gas is called ____________.
    Evaporation
  • Why the water from the seas and oceans is not suitable for living things to take in or use?
    It is contain too much salt
  • Mention 3 uses of water for human
    Drinking, cooking, recreation, etc.
  • The Sun provides the energy for condensation in water cycle process. (T/F)
    False. The Sun provides the energy for evaporation in water cycle process.
  • What causes the water from the Earth's surface to evaporate?
    Heat
  • Water changing from a gas to a liquid is called ____________.
    Condensation
  • Which two processes result in the formation of clouds from water on the Earth?
    Evaporation and condensation
  • Explain how burning fossil fuels harm the water cycle
    burning fossil fuels produce smoke that will mix with the cloud and cause acid rain
  • How does rain can cool the air on Earth?
    Rain that falls from the sky has a lower temperature than the air around us
  • Water falling to the Earth's surface from the atmosphere is called ___________.
    Precipitation/Rain
  • What is the percentage of water on the Earth's surface?
    around 70%
  • Name 1 human activity that affect the water cycle
    deforestation / burning fossil fuels