Carbon Cycle

Question 1

In the atmosphere carbon is found as?

Answer 1

Carbon dioxide and methane

Question 2

What are two times carbon is absorbed from the atmosphere?

Answer 2

Carbon is dissolved/ absorbed in water ( becomes calcium carbonate which makes shells n skeletons ) and During photosynthesis

Question 3

What are the times in which carbon is released into the atmosphere ?

Answer 3

1) Respiration
2) Forest fires
3) Volcanic eruptions
4)

Question 4

What are all the exchange’s of the carbon cycle ? List them

Answer 4

1) photosynthesis
2) ingestion
3) respiration
4) decomposition of waste
5) forest fires
6) shells and skeletons
7) carbonate rock
8) volcanic eruptions
9) fossil fuels

Question 5

How does photosynthesis contribute to the carbon cycle?

Answer 5

Plants absorb carbon dioxide and release oxygen which plants need to grow

Question 6

How does ingestion contribute to the carbon cycle ?

Answer 6

It doesn’t really, it’s more a transfer of carbon. From plants to animals

Question 7

How does respiration contribute to the carbon cycle ?

Answer 7

Carbon dioxide is released when an living organism exhales

Question 8

How does decomposition and waste contribute to the carbon cycle ?

Answer 8

Plant/animal waste is decomposed by decomposers and during the process both carbon dioxide and methane is released

Question 9

How do forest fires contribute to the carbon cycle ?

Answer 9

Forest fires release a lot of carbon dioxide into the atmosphere. (Combustion causes the carbon in trunks n leaves to change into carbon dioxide)

Question 10

How does shells and skeletons contribute to the carbon cycle ?

Answer 10

Carbon dioxide is absorbed/dissolved in the water. Which reacts with water and calcium becoming calcium carbonate. This makes up shells and skeletons of marine organisms

Question 11

How does carbonate rock contribute to the carbon cycle ?

Answer 11

Calcium carbonate from shells and skeletons fall to the bottom of the ocean, and accumulates in sediments. This then becomes carbonate rock. ( it can be brought back to the surface by the tectonic plates )

Question 12

How do volcanic eruptions contribute to the carbon cycle ?

Answer 12

Carbonate rock is melted and the carbon from the rock returns to the atmosphere as carbon dioxide

Question 13

How do fossil fuels contribute to the carbon cycle ?

Answer 13

The dead organisms (still containing carbon) fall to the ocean floor then being buried in sediments. This carbon then charges into fossil fuels and oil