Carbon, nitrogen and water cycles

Question 1 of 10

Draw and describe the carbon cycle.

Question 2 of 10

Deforestation reduces

Question 3 of 10

Which organisms play the major role in recycling nutrients?

Question 4 of 10

Denitrifying bacteria convert

Question 5 of 10

Legumes have root ___ containing bacteria.

Question 6 of 10

The gas used in photosynthesis is ___.

Question 7 of 10

Decay of dead plants and animals releases

Question 8 of 10

Conversion of ammonia to nitrates is ___.

Question 9 of 10

Carbon dioxide is removed from the air by

Question 10 of 10

Rain, hail and snow are forms of