Carbon Cycle
The main regulator of CO2 in the atmosphere
What is the ocean?
The water cycle’s two classifications
What are biological and physical/chemical?
78% of our atmosphere is this gas
What is nitrogen?
Phosphorus is contained mostly in these things
What are rocks and minerals?
A nutrient whose supply limits productivity in soil
What is a limiting nutrient?
The kinds of fossil fuels
What are coal, oil, and natural gas?
The process of turning from liquid into vapor
What is evaporation?
Bacteria that can directly use nitrogen and “fix” it so that other organisms can benefit
What is nitrogen-fixing bacteria?
Phosphorus makes up this important chemical
What is DNA?
A limitation in soil
What is lack of nitrogen?
The reason why more CO2 is released into the atmosphere today than in the past
What is the burning of fossil fuels?
The types of precipitation
What are rain, sleet, snow, and hail?
Higher organisms use nitrogen to make this
What are proteins?
Some of the phosphorus in soils can be washed away into this landform
What are water basins?
A limitation in an aquatic freshwater environment
What is phosphorus?
A natural source for CO2
What are volcanoes?
Precipitation that runs off the landscape
What is surface runoff?
Bacteria in soil that breaks down ammonia into nitrogen
What is denitrification bacteria?
A source of phosphorus in water
What is man-made pollution?
A limitation in an aquatic saltwater environment (the ocean)
What is nitrogen?
The cause of the greenhouse effect
What is too much CO2 in the atmosphere?
The process where water vapor becomes liquid
What is condensation?
The nitrogen cycle’s three classifications
What are biological, human, and physical/chemical?
The cause of plant overgrowth
What is too much phosphorus in water?
The limit to productivity would be nutrients if this was the circumstance
What is an ample amount of sun?