Carbon Cycle

Question 1

Why its important

Answer 1

Carbon is the basis of long chains of molecules that form the membranes and walls of cells
Constitute the back bones of proteins
Store energy for later use
20% of their body weight

Question 2

Photosynthesis and respiration 1

Answer 2

Producers take in CO2 when they photosynthesize and incorporate it into their tissues

Question 3

Photosynthesis and respiration 2

Answer 3

CO2 returns when organisms respire and die

Question 4

Photosynthesis and respiration 3

Answer 4

CO2 is returned to the water or air by plant respiration and the cycle continues

Question 5

Exchange sedimentation and Burial 1

Answer 5

Co2 dissolved in the ocean combines with calcium ions in the water to form calcium carbonate ions to for calcium carbonate ions (CaCo3)

Question 6

Exchange sedimentation and Burial 2

Answer 6

CaCo3 can precipitate out of the water abd form limestone and dolomite rock

Question 7

Exchange sedimentation and Burial 4

Answer 7

Some carbon may be buried into ocean sediments and form fossil fuels

Question 8

Exchange sedimentation and Burial 5

Answer 8

Some CO2 dissolved into the ocean enters the food web via photosynthesis by algae

Question 9

Extraction and Combustion 1

Answer 9

Combustion of fossil fuels by humans and natural combustion of carbon release carbon into the atmosphere as CO2 or into soil as ash

Question 10

Human Impacts of Carbon Cycle

Answer 10

Combustion of fossil fuels
Tree harvesting

Question 11

Sink

Answer 11

Ocean,soil,forests

Question 12

Source

Answer 12

Animals