Geological stores and processes

Question 1

Weathering of rocks

Answer 1

Mechanical, chemical and biological weathering results in the breakdown of rocks

Question 2

Decomposition

Answer 2

Plant and animal particles from decomposition after death store carbon

Question 3

Transportation

Answer 3

Rivers can carry particles to the ocean, where they will be deposited

Question 4

Sedimentation

Answer 4

Over time, sediments build up, burying older sediments below e.g. shale and limestone

Question 5

Metamorphosis

Answer 5

Pressure builds over time in the layers of sediment which eventually leads to deeper sediment changing to rock e.g. limestone becomes marble, shale becomes slate

Question 6

Carbon in rocks

Answer 6

80% of carbon containing rocks in the ocean is from shell-building organisms (corals) and plankton