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CYCLES QUIZ REVIEW. What are carbonates?. Carbonates are rocks made of calcium or magnesium and CARBON. What is an example of a carbonate?. LIMESTONE. What is the Carbon Cycle?. The process where carbon in the air is cycled between plants, animals, and the environment. Is coal a carbonate?.
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Carbonates are rocks made of calcium or magnesium and CARBON
The process where carbon in the air is cycled between plants, animals, and the environment
COAL is a rock that is petrified plants. Ican be up to 98 percent pure carbon.
How does carbon dioxide in the air become organic carbon compounds?
Plants take in CO2 and convert it to carbon compounds through photosynthesis.
Animals use it in cellular respiration to obtain energy. When the breath, they exhale co. as a waste product of the cellular respiration
They store it as stable rock that will hold it indefinitely underground
It takes carbon out of the environment and locks it up indefinitely
What is another carbon sink that humans have been exploiting to make energy?
Why has the level of carbon dioxide in the atmosphere been increasing over the centuries?
Fossil fuels that have held carbon for hundreds of millions of years are releasing CO2 when they are burned.
How does the ocean remove some of the CO2 from the atmosphere?
Water will naturally absorb quantities of CO2, but in so doing, it becomes acidic • Shellfish use Co2 in making their shells, which then become carbonate rock
What are the environmental consequences of increased atmospheric CO2?
Acid Rain • Global Warming
What converts atmospheric Nitrogen into nitrogen compounds that plants can use?
In the soil on nodules that are on legume (bean family) roots
How do plants with no nitrogen fixing bacteria get nitrogen?
How do nitrogen compounds from plants and animals get back into the soil?
How does a small amount of Nitrogen gas NATURALLY get back into the atmosphere?
It stays in the environment in the soil, water, and living organisms
Small amounts of phosphorus salts wash out of rocks and soil
Some phosphorus salts are insoluble in water, and it gets washed into the oceans.