Cycles

Question 1 of 10

The stages in the life cycle of a mosquito are

Question 2 of 10

The process by which plants lose water vapour through their leaves is

Question 3 of 10

Bacteria in the root nodules of legumes convert atmospheric nitrogen into compounds plants can use. This is

Question 4 of 10

Carbon dioxide is returned to the air by

Question 5 of 10

The process by which plants make food using sunlight is

Question 6 of 10

Carbon dioxide is removed from the atmosphere mainly by

Question 7 of 10

Denitrifying bacteria convert nitrates in the soil into

Question 8 of 10

In the carbon cycle, carbon dioxide is removed from the air mainly by

Question 9 of 10

The process by which nitrogen gas in the air is changed into nitrates in the soil by bacteria is

Question 10 of 10

Which process removes carbon dioxide from the atmosphere?