1) Q: The appropriate practices of land use including deforestation and __________exert long-term effects on the environment.
crop rotation
monoculture
cultivation

2) Q: Which of the following is not the effect of deforestation?
destruction of natural habitats and loss of species
loss of fuel wood
formation of acid rain

3) Q: Which is the best way to solve the problem of monoculture?
use of pesticides
crop rotation
use of chemicals

4) Q: Which of the following is not the pollutants in air?
ozone
lead
carbon dioxide

5) Q: What is the effect of the exposure to high level of sulphur dioxide?
causes anaemia
damages the nervous system
reduces lung function

6) Q: What is the effect of carbon monoxide?
reduces oxygen carrying capacity of our body
causes formation of photochemical smog
causes the formation of acid rain

7) Q: Which of the following is not the component of photochemical smog?
Ozone
nitrogen dioxide
carbon monoxide

8) Q: Which of the following is not the effect of acid rain on plant?
wash away the nutrients of soil
increase the acidity of the soil
allow poisonous minerals to be taken up by the plant roots
none of them

9) Q: Which of the following is not the way of reducing the amount of carbon dioxide produced in air?
use of alternative energy sources
use of CFCs
stopping deforestation

10) Q: When was API developed in Hong Kong?
1995
1996
1997

11) Q: Where is one of the roadside stations for monitoring air quality located in Hong Kong?
Tsuen Wan
Central
Chai Wan

12) Q: When API exceeds ________, people having breathing or heart problems are not advised to go out?
75
50
100

13) Q: When was unleaded petrol first introduced in Hong Kong?
1993
1990
1991

14) Q: What is used as catalyst for catalytic converter?
platinum
potassium
silver

15) Q: The installation of electrostatic precipitators in power plants help to reduce _________
water pollution
air pollution
land pollution

16) Q: Where is one of the sewage treatment plants located in Hong Kong?
Tuen Mun
Tsing Yi
Shatin

17) Q: What is the scale used for measuring noise?
Pauling's scale
Kelvin scale
Decibel scale