Carbon Cycle

Question 1

Carbon
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

1
Photosynthesis and respiration 1
Carbon cycle

Answer 2

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

Question 3

1 Carbon cycle
Photosynthesis and respiration 2

Answer 3

CO2 returns when organisms respire and die

Question 4

1
Photosynthesis and respiration 3
Carbon cycle

Answer 4

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

Question 5

2 Carbon cycle
Exchange sedimentation and Burial 1

Answer 5

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

Question 6

2
Exchange sedimentation and Burial 2

Carbon cycle

Answer 6

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

Question 7

2
Exchange sedimentation and Burial 3
Carbon cycle

Answer 7

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

Question 8

2
Exchange sedimentation and Burial 4
Carbon Cycle

Answer 8

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

Question 9

3
Extraction and Combustion 1
Carbon Cycle

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

Carbon cycle
Sink

Answer 11

Ocean,soil,forests

Question 12

Source
Carbon cycle

Answer 12

burning of fossil fuels like gas, coal and oil, deforestation and volcanic eruptions.