Carbon and Water Cycle

Cards (9)

  • Life on Earth has existed for billions of years because it recycles everything from molecules like water and carbon dioxide to individual atoms like nitrogen, phosphorus, and carbon.
  • The water cycle begins when energy from the sun causes some of the water to evaporate, which could be water from lakes, oceans, rivers, or water on land such as puddles or soil.
  • Transpiration is the evaporation of water from the leaves of plants.
  • The water vapor accumulates in the sky and starts to condense into clouds, which can then be blown from one region to another until the water falls back down to earth as liquid water in the form of rain, which is called precipitation.
  • The carbon cycle involves the storage of carbon in different places such as the air, plants, soil, fossil fuels, and animals.
  • Photosynthesis is the process in which green plants and algae take in the carbon dioxide from the atmosphere and convert it into biological molecules like glucose.
  • The carbon that's now locked up inside these plants can then be passed back out to the atmosphere by respiration or passed on to animals that eat the plants.
  • If the dead organisms avoid being decayed by microorganisms and instead are decayed in anaerobic conditions, they might slowly be converted into fossil fuels like oil, natural gas, or coal.
  • Fossil fuels can then be burned by humans to produce carbon dioxide again.