Water cycle

• What is the process by which the Sun causes water to evaporate from the land and sea?

  Evaporation
• How does water vapor enter the atmosphere from plants?

  Through transpiration
• What happens to warm water vapor as it rises in the atmosphere?

  It cools and condenses to form clouds
• What is the term for water falling from clouds?

  Precipitation
• What forms can precipitation take?

  Rain, snow, or hail
• What role does the flow of fresh water through the water cycle play in ecosystems?

  It allows nutrients to be transported to different ecosystems
• What are the main processes involved in the water cycle?

  • Evaporation
  • Transpiration
  • Condensation
  • Precipitation
• What is the role of bacteria in the nitrogen cycle?

  Bacteria do the hard work in the nitrogen cycle
• How does lightning contribute to the nitrogen cycle?

  It aids the bacteria in the nitrogen cycle
• Why is rain considered useful in the context of the water cycle?

  It provides fresh water
• Explain how water from the sea can eventually fall as rain.

  Water evaporates from the sea, rises as vapor, cools and condenses into clouds, and then falls as precipitation.