Natural Cycles 2

Question 1

Atmospheric CO2 dissolves easily in the

Answer 1

Ocean

Question 2

Process of CO2 dissolving is _ so there is a slow equal exchange between air and water

Answer 2

Reversible

Question 3

Marine life uses dissolved carbon to make

Answer 3

Carbonate shells

Question 4

Carbonate shells eventually sink and create _ on seabed

Answer 4

Rock-forming sediments

Question 5

Carbon is stored in ocean water as CO2, (2)

Answer 5

Carbonic acid

Hydrogen carbonate

Question 6

Carbon is stored in ocean water as CO2 and

Answer 6

Carbonate

Question 7

Acidic seawater attacking and releasing locked carbon in sediment is known as

Answer 7

Weathering

Question 8

_ are sedimentary rock formed from carbon-rich organisms (2)

Answer 8

Limestone

Coal

Question 9

_ release large amounts of co2 into air during eruption

Answer 9

Magma that forms volcanic rock

Question 10

Magma such as

Answer 10

Basalt