Earth's spheres
What is the meaning of hydrosphere?
All the water on Earth
What is it called when liquid water turns into water vapour?
Evaporation
How is carbon absorbed by plants?
Photosynthesis
Distinguish between weather and climate.
Weather - short term, day to day.
Climate - long term, trends over 30+ yrs
When water vapour turns into liquid water.
Condensation
Name the 4 Earth spheres
Geosphere, atmosphere, hydrosphere and biosphere
What are the 4 water sources for homes?
Dam, groundwater, desalination and replenished groundwater
What is the largest carbon store on Earth?
Oceans
What types of evidence reveal past climate trends?
Thermometers, satellites, ice cores, etc.
When water falls in the form of rain, hail or sleet.
Precipitation
What spheres are interacting during a volcanic eruption?
Geosphere and atmosphere
What water source provides the most drinking water to homes?
Groundwater
What organisms are responsible for moving carbon from living organisms back to the ground?
Decomposers (bacteria and fungi)
Name 3 greenhouse gases.
CO2, SO2, methane, etc.
The movement of atoms through the 4 spheres.
Biogeochemical cycles
What is the name of the first sphere in the atmosphere, closest to the ground?
Troposphere
Algal blooms, dead zones, dead marine plants and animals, etc.
What can humans do to disrupt the carbon cycle?
Combustion of fossil fuels, deforestation, agriculture, etc.
What is a Milankovitch cycle?
Changes in the Earth's movement through space.
Observing tree rings for evidence of climate.
Dendrochronology
Describe a scenario where all 4 spheres are interacting.
Answers will vary.
Summarise how sea water is turned into drinking water (process of desalination)?
Filtered, reverse osmosis and remineralisation
How is carbon stored in the Earth released back into the atmosphere?
Combustion of fossil fuels and volcanic eruptions
Summarise the enhanced greenhouse effect.
Sun's rays reflect back to Earth, however greenhouse gases continue this reflecting
Pollen analysis
Palynology