1.2 Carbon Cluedo

Question 1

Why does limestone have a high concentration of calcium carbonate?

Answer 1

Formed from shells and skeletons of coral and

other marine creatures

Question 2

Marine phytoplankton absorb carbon dioxide through the process of _______

Answer 2

Photosynthesis

Question 3

Accumulation and _________ (under heat and pressure) occur to form limestone under ocean floor

Answer 3

Cementation

Question 4

Tectonics fold and uplift limestone from the ocean bed to form what?

Answer 4

Mountain ranges

Question 5

How are hydrocarbons formed?

Answer 5

Remains of living organic material (non skeletal) decay under anaerobic conditions (without oxygen) to form hydrocarbon chains

Question 6

What is formed from the remains of trees, ferns and land-based plants

Answer 6

Coal

Question 7

How can peat be converted to coal

Answer 7

Organic material in swamps starts as peat, but heat and pressure convert it into coal.

Question 8

Where is crude oil stored

Answer 8

Crude oil stored in the pore spaces of clastic sedimentary basins. Gas is a by-product during this process – migrating upwards until it meets a caprock