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2. What is the role of each of the following in the carbon cycle?
Give an example of each.
a. Primary producers
b. Secondary producers
c. Decomposers
3. Where is most of the Earth’s carbon located? What form is it?
4. How does carbon enter the biotic part of the ecosystem?
5. What function do plants have in the forest in the carbon
cycle?
6. How is carbon dioxide returned to the atmosphere?
7. What happens when primary and secondary consumers die?
8. What do detritus feeders contribute to the carbon cycle?
9. What is a fossil fuel?

Sagot :

Jet31idn

2.Secondary composer eat producers, respirate, releasing energy in the body and carbon dioxide into the atmosphere. ... As they break these down they respirate returning carbon dioxide to the atmosphere and nutrients to the soil.

3.Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth's temperature, make up the food that sustains us, and provide energy that fuels our global economy. Most of Earth's carbon is stored in rocks and sediments. . The rest is located in the ocean, atmosphere, and in living organisms.

4.Carbon enters the biotic (living) part of the ecosystem through photosynthesis. Plants of the forests take the carbon in carbon dioxide and fix it in organic compound such as sugar, starch, cellulose and other carbohydrates. Respiration in plants returns carbon dioxide to the atmosphere.

5.Plants absorb carbon dioxide,water and sunlight to make their own food,grow and release oxygen through photosynthesis. They're a huge part in keeping our air clean. The carbon becomes part of the plant. Plants that die and are buried may turn into fossil fuels made of carbon like coal and oil over millions of years.

6.Remember that we breathe out carbon dioxide. ... The cycling of carbon dioxide in photosynthesis and cellular respiration are main components of the carbon cycle. Carbon is also returned to the atmosphere by the burning of organic matter (combustion) and fossil fuels and decomposition of organic matter.

7.When a primary and secondary consumer die they decay. Decomposers break down their remains, returning nutrients to the soil, and releasing carbon dioxide through respiration.

8.Detritus feeders feed on dead and decaying producers (plants) and consumers (animals) and return carbon dioxide to the atmosphere. They also contribute to the CO2 pool by processing dead and waste organic matter.

9.A fossil fuel is a hydrocarbon-containing material formed underground from the remains of dead plants and animals that humans extract and burn to release energy for use. The main fossil fuels are coal, petroleum and natural gas, which humans extract through mining and drilling.

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