topic 2 environmental cycles Flashcards
the water cycle
the cycling of water through the lithosphere, biosphere and atmosphere by solar energy
transpiration
water vapour
- Water is absorbs ed by plants from the soil through their roots. The water travels up the stem of the plant to the leaves. The water is released into the atmosphere through stomata
condensation
Cooling of water vapor (gas) in atmosphere. Water vapor condenses into water droplets (liquid) – forming clouds
precipitation
Drops of water formed by condensation fall to earth. Can fall as rain, snow or hail
surface run off
-Refers to the movement of water over the land surface
- Run off ends up in streams, rivers, lakes and oceans. Can transport sediment, nutrients and pollutants to the other areas
infiltration
Precipitation tat falls onto land can soak into the soil refilling groundwater sources
ground water flow
Water the infiltrates into the soil becomes groundwater which slowly moves through underground aquifers
percolation
The movement of water through soil or rock
aquifer
body of rock and/or sediment that holds groundwater
evaporation
The sun heats a body of water such as the ocean or lakes and rivers. Causes water to change from liquid to water vapor and rise into the atmosphere
freezing
Converts liquid water into solid water from the liquid state. Acts as water storage. Water is removed from the water cycle until melted.
melting
Conversion between ice and snow to liquid water. After melting snow, ice refills rivers lakes and oceans
deposition
Transforms water vapor into ice. Forming ice snow and glaciers
volcanic eruptions
release large amounts carbon dioxide into the atmosphere
carbon sequestration
- plants take carbon dioxide to use in photosynthesis
- phytoplankton and other marine organisms take in carbon through photosynthesis
- oceans dissolve carbon dioxide
- co2 combines with the water and forms calcium formation of calcium carbonate