Water Cycle
Earth's Surface
Under Earth's Surface
In the Atmosphere
In Living Organisms
The basis of all organic molecules, and is found in a variety of chemical forms.
Carbon
One organism eats another and obtains the nitrogen in it.
Consumption
Name one way humans negatively affect the water cycle.
Deforestation
Pollution
Buildings
What percentage of Earth is covered by oceans?
More than 70%
Rain, snow, any form of water falling down to Earth.
Precipitation
Name 2 places carbon can be found.
Atmosphere
Minerals and Rocks
Fossil Fuels
Organic Matter
Name 2 places where nitrogen can be found.
Macromolecules
Fossil Fuels
Waste
Soil
Wood and other fossil fuels are burned.
Combustion
What is the chemical formula for water?
H2O
The water cycle is driven by the...
Sun
CO2 released into atmosphere as waste from metabolism
Cellular Respiration
Bacteria convert nitrogen from waste (urine and feces) into ammonia.
Ammonification
Fertilizers negatively affect the nitrogen cycle. True or False?
True
All mushrooms are decomposers. True or False?
True!
Water rises back up into the atmosphere as water vapor from plants.
Transpiration
Name 2 decomposers.
Bacteria
Earthworms
Fungi
Bacteria convert nitrogen in ammonia to N2 so it can go back into the atmosphere.
Denitrification
Name one way that human can positively impact the carbon cycle.
Burn less
Use renewable resources
Nitrogen, in all forms, can be used by plants and animals. True or False?
False
An underground layer of permeable rock that can hold water.
Aquifer
Plants and algae remove CO2 from the atmosphere and convert it into simple sugars. What are these organisms called?
Photosynthetic organisms
What makes the nitrogen cycle different than other geochemical cycles?
No step is completed without the help of living organisms.
When a body of water becomes overly enriched with nutrients, causing excessive algae growth.
Eutrophication
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