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Science:Earth system

QuestionAnswer
Geosphere components Soil, rocks, land forms and dust particles
Hydrosphere components Lakes, oceans and ground water
Atmosphere components CO2, O2 and N2
Biosphere components Pants, animal and bacteria
Carbon enters the atmosphere when... Fossil fuels are burned
Carbon enters the atmosphere when... Dead plants and animals decompose
Carbon enters the atmosphere when... Atmosphere absorbs carbon from the ocean through diffusion
Carbon enters the atmosphere when... Forests are burned
Carbon enters the atmosphere when... Plant and animal respiration
Carbon exits the atmosphere when... Absorbed by oceans through diffusion
Carbon exits the atmosphere when... Photosynthesis
Carbon enters the geosphere when... Dead plants and animals decompose
Carbon enters the geosphere when... Dead plants and animals turn into rock
Carbon enters the geosphere when... Dead plants and animals become fossil fuels
Carbon enters the hydrosphere when... Oceans absorb CO2 through diffusion
Carbon enters the geosphere when... Marine life decompose
Describe why nitrogen and phosphorus are important and how too much nitrogen impacts on life on earth. Both are necessary for life, too much nitrogen creates dead zones in lake & oceans
List the 4 biogeochemical cycles. What do they all have in common? They all move matter through spheres. All never ending cycles.
Which spheres does the phosphorus cycle move through Biosphere, Geosphere, Hydrosphere
Nitrogen from the atmosphere moves to the soil when... When lightening occurs
Nitrogen from the atmosphere moves to the soil when... Bacteria in root nodules of legumes change it to usable composition
Nitrogen from the soil moves to plants when... Plants take it up
Nitrogen from the soil moves to plants when... Bacteria in root nodules of legumes change it to usable compound
Nitrogen from the soil moves to plants when... Bacteria in the soil change it to usable compound
Nitrogen from the plants moves to animals when... Animals eat plants
Nitrogen from the plants moves to animals when... Animals eat animals
Nitrogen from the atmosphere moves to the hydrosphere when... Lightning strikes
Nitrogen from the soil moves to the atmosphere when... Specialized bacteria (denitrifying) change to a new compound (N2)
Why are the water cycle, nitrogen cycle, carbon cycle and phosphorous cycle all considered cycles? They are never ending
Explain why spheres of the earth are open systems Both matter and energy freely enter and exit
Open system Energy and matter can enter and exit
Closed system Only energy can enter and exit and matter cannot enter or exit
Why is earth a closed system? Because matter can not enter or exit earth's system but energy can
What is the equation for density? D=m/v
What is the unit for mass? grams
What is the unit for volume of a solid ? cm3
What is the unit for volume of a liquid? ml
What is the unit for density ? g/cm3
Geosphere-Hydro An earthquake causes a tsunami.
Geosphere-Atmosphere A volcano erupts with an enormous amount of ash making it a cool summer.
Geosphere-Biosphere A volcano destroys a nearby town.
Hydrosphere-Geosphere Acidic rain breaks up rocks.
Hydrosphere-Atmosphere Warmer ocean temperatures reduces the amount of Carbon Dioxide stored in the ocean.
Hydrosphere-Biosphere Too many nutrients in a lake lead to fish kills.
Atmosphere-Geosphere Sand is blown into dunes.
Atmosphere-Hydrosphere Nitrous oxides enter rivers.
Atmosphere-Biosphere Wind carries nitrous oxides over a nearby forest.
Biosphere-Geosphere Trees reduce the amount of nutrients in the soil.
Biosphere-Hydrosphere Building a road causes sediments to enter a nearby lake.
Biosphere-Atmosphere Burning fossil fuels add Nitrous oxides to the air.
Created by: carrienb
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