Earth's four spheres
Water Cycle
Carbon Cycle
Nitrogen Cycle
100
What Earth cycle links directly to the hydrosphere?
water cycle
100
Rain is an example of what process in the water cycle?
Precipitation
100
Which of the following is not considered to be a Greenhouse gas?
a. carbon dioxide
b. nitrous oxide
c. nitrogen
d. chloro-fluorocarbons
C. nitrogen
100
Name 1 process in the nitrogen cycle
fixation, uptake, mineralization, nitrification, and denitrification
200
What are the four major spheres of the Earth?
lithosphere, hydrosphere, atmosphere, biosphere
200
Condensation causes what to form?
Clouds
200
List 1 way humans increase carbon dioxide levels?
Burning fossil fuels
200
Ammonification involves decomposers breaking down tissue and releasing nitrogen back into the ecosystem as what compound?
ammonia
300
What are fossil fuels?
Fossil fuels are compound mixtures made of fossilized plant and animal remnants from millions of years ago which can be used as a non-renewable source of energy.
300
What state of matter is water in when it is frozen?
solid
300
What is the word equation for photosynthesis?
carbon dioxide + water = glucose + oxygen
300
Nitrates and ammonia resulting from nitrogen fixation are assimilated into the specific tissue compounds of algae and higher plants. Animals then ingest these algae and plants, converting them into their own body compounds.
Is this process assimilation, nitrification or ammonification?
Assimilation
400
How does the water cycle connect to the biosphere?
Provides plants and animals with water required for growth.
400
During the process of evaporation, water changes from liquid to what state of matter?
Gas
400
The burning of fossil fuels is called what?
Combustion
400
What process is shown by label C?
Nitrification
500
Humans would be included in which sphere?
Biosphere
500
During condensation, water changes from a gas state of matter to what state of matter?
liquid
500
How can carbon dioxide be removed from the Earth's atmosphere?
Dissolved into seawater
Absorbed by plants
500
What is the name of the groups of organisms in label B?
decomposers