Feedback Loops
Negative feedback processes tend to function within ecosystem in order to...
What is the process of rain or snowfall called?
precipitation
The majority of gas in the Earth's atmosphere is
What is nitrogen?
The largest pool of carbon in the carbon cycle
In rocks (oil/coal)
Types of feedback loops
Positive and negative
What is the process of turning a liquid into a gas?
Evaporation
The process of burning fossil fuels, releasing carbon, is called?
combustion / Emissions
How does nitrogen fixation occur?
nitrogen-fixing bacteria
How do autotrophs obtain energy?
photosynthesis/chemosynthesis
How do feedback loops play a role in climate regulation?
Answers may vary
How does water vapor from the atmosphere form into clouds?
condensation
Why is nitrogen so important?
it is used to make amino acids, and ultimately proteins, allowing plants and animals to grow
What is an example of a positive feedback loop, explain
global warming, albedo, etc.
As Earth worms, organic matter in soil is decomposed faster so more carbon dioxide is released, enhanced greenhouse effect occurs, the Earth warms further. This is an example of what type of feedback.
What is positive feedback
What two things can happen with water after precipitation has returned it to the ground?
Percolation/Infiltration and Surface Runoff
How do humans get the nitrogen that they need?
Consumption (Eating!)
How do animals get the phosphorus they need?
Eat plants and animals that eat plants
How does a thermostat function as a feedback loop?
answer may vary
What is transpiration?
the evaporation of water from plants
Bacteria can change Nitrogen into what?
Ammonium and Ammonia, Nitrates and Nitrites
What is one way Nitrogen can be fixed WITHOUT bacteria?
Lightening!