98 Carbon Cycle

In what important molecules is carbon found in living systems?

• Proteins, carbohydrates, and fats

• Water, oxygen, and nitrogen

• Salts, acids, and bases

• Vitamins, minerals, and enzymes

Tags

NGSS.MS-LS1-6

In what two forms is carbon found in rocks?

• Graphite and diamond

• Carbonate and silicate

• Coal and limestone

• Carbon and limestone

Name two processes that remove carbon from the atmosphere.

• Combustion and respiration

• Photosynthesis and dissolving

• Fossilization and sedimentation

• Oxidation and decomposition

Tags

NGSS.MS-LS1-6

What is the role of decomposers in the carbon cycle?

• They release carbon dioxide through combustion.

• They convert carbon into fossil fuels.

• They break down dead organisms, releasing carbon.

• They absorb carbon dioxide for photosynthesis.

Tags

NGSS.MS-LS2-3

How long can carbon remain in rocks?

• For about 10 years

• For about 100 years

• For millions of years

• For about 400 years

What is the most important element for life due to its ability to form a variety of molecules?

• Oxygen

• Hydrogen

• Carbon

• Nitrogen

Tags

NGSS.HS-LS1-6

NGSS.HS-LS2-5

Which process involves the oxidation of glucose to produce energy?

• Photosynthesis

• Respiration

• Fossilization

• Dissolving

Tags

NGSS.MS-LS1-7

What is the average time carbon remains in organisms?

• About 1 year

• About 5 years

• About 10 years

• About 20 years

How is coal primarily formed?

• From volcanic ash

• From marine organisms

• From terrestrial plant material

• From mineral deposits

What are oil and natural gas formed from?

• Volcanic eruptions

• Dead algae and zooplankton

• Mineral deposits

• Plant roots

Tags

NGSS.MS-ESS3-1