Biology

Question 1

1Which gas from vehicle exhausts is poisonous?

Easy

A. argon B. oxygen C. carbon monoxide D. nitrogen

Question 2

2Plastic bags decay quickly in soil.

Easy

A. True B. False

Question 3

3Deforestation contributes to

Easy

A. soil erosion B. more rainfall C. cooler climate D. less carbon dioxide

Question 4

4Excess nutrients in water cause ___.

Easy

Your answer (fill in the blank)

Question 5

5Sewage in a river causes a decrease in

Easy

A. bacteria B. dissolved oxygen C. nitrates D. phosphates

Question 6

6Chlorofluorocarbons destroy the

Easy

A. rain forest B. ozone layer C. water D. soil

Question 7

7The poisonous metal used by galamsey operators is ___.

Easy

Your answer (fill in the blank)

Question 8

8The gas that causes the greenhouse effect most is ___.

Easy

Your answer (fill in the blank)

Question 9

9The layer that protects us from ultraviolet light is the ___ layer.

Easy

Your answer (fill in the blank)

Question 10

10Biodegradable wastes

Easy

A. can be broken down by microbes B. are made of plastic C. cannot be broken down D. are metals