Ciclo Del Carbono

How does the human body return carbon to the atmosphere in the carbon cycle?

• Waste products

• Photosynthesis

• Cellular respiration

• Formation of glucose

Tags

NGSS.HS-LS2-5

If many trees are removed from a forest by logging, what is the most immediate effect on the carbon cycle in that forest? 

• 
  increase in rate of decomposition

• increase production of organic compounds

• decreased combustion of fossil fuel

• increase in the rates of atmospheric carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Match the following processes with how they return carbon to the atmosphere in the carbon cycle.

• Release of carbon dioxide during energy production

• Cellular respiration

• Conversion of carbon dioxide into oxygen

• Photosynthesis

• Synthesis of carbohydrates

• Formation of glucose

Answer explanation

The human body returns carbon to the atmosphere primarily through cellular respiration, where glucose is broken down to release energy, producing carbon dioxide as a waste product that is exhaled.

Tags

NGSS.MS-LS2-3

What is the primary process by which plants remove carbon dioxide from the atmosphere?

• Photosynthesis

• Respiration

• Combustion

• Decomposition

Tags

NGSS.MS-LS1-6

Which of the following is a major carbon sink in the carbon cycle?

• Oceans

• Mountains

• Deserts

• Rivers

Tags

NGSS.MS-LS1-6

How do animals contribute to the carbon cycle?

• By photosynthesis

• By respiration

• By nitrogen fixation

• By decomposition

Tags

NGSS.MS-LS2-3

What role do decomposers play in the carbon cycle?

• They fix carbon into the soil

• They release carbon dioxide during decomposition

• They absorb carbon dioxide

• They convert carbon dioxide into oxygen

Tags

NGSS.MS-LS2-3

Which human activity is a significant source of carbon emissions?

• Deforestation

• Photosynthesis

• Nitrogen fixation

• Water cycle

Tags

NGSS.MS-ESS3-4

What is the chemical formula for carbon dioxide?

Tags

NGSS.MS-PS1-1

Which process is responsible for the release of carbon dioxide from fossil fuels?

• Combustion

• Photosynthesis

• Respiration

• Decomposition