8.4

Vocab:

-carbon cycle: the process by which carbon molecules move between organic matter and organic matter.

-greenhouse: the property that keeps the earth warm by trapping heat from the sun.



Concept Check:

1. An example of inorganics carbon being transfered into organic is when a plant absorbs the CO2 from the air and produce sugar. An example of organic compound moving carbon into inorganic compounds is when animals eat food and produce CO2.


2. Cabon Dioxide is very important to the Earth's climate because they trap heat from the sun to keep earth warm during the night.

Summary:

On earth, there are many processes that life depends on, one of them is the carbon cycle where organic and inorganic compounds transfer carbon atoms between them. The carbon cycle works by plants turn CO2 into O2 and Carbon. They use the Carbon to make food for concumers whom in turn, use the food to make CO2 and water.

Global climate is affected by greenhouse effect, the effect is done by CO2 molecules in the air, they trap solar energy to keep the earth warm during the night or whenever the sun isn't there (if the sun just disapearred over night).