Biology

Question 1

1Water falling as rain is ___.

Easy

Your answer (fill in the blank)

Question 2

2Respiration releases carbon dioxide.

Easy

A. True B. False

Question 3

3Excess burning of fossil fuels increases

Easy

A. nitrogen B. oxygen C. atmospheric carbon dioxide D. ozone

Question 4

4Conversion of ammonia to nitrates is ___.

Easy

Your answer (fill in the blank)

Question 5

5Rain, hail and snow are forms of

Easy

A. run-off B. precipitation C. transpiration D. evaporation

Question 6

6Plants absorb nitrogen mainly as

Easy

A. nitrates B. nitrogen gas C. urea D. ammonia gas

Question 7

7Nitrogen-fixing bacteria live in the root nodules of

Easy

A. cereals B. legumes C. grasses D. ferns

Question 8

8Water vapour changes to liquid in clouds by

Easy

A. condensation B. osmosis C. evaporation D. transpiration

Question 9

9The gas used in photosynthesis is ___.

Easy

Your answer (fill in the blank)

Question 10

10Legumes are used in crop rotation to

Easy

A. remove nitrogen B. cool the soil C. add carbon D. add nitrogen to soil