9Ga

1       Which of the following could you use to test the pH of a soil?

A       lime

B       calcium hydroxide

C       hydrochloric acid

D       universal indicator

 

2       The list below shows the best pH range for the healthy growth of some common plants.

Which of the plants would grow well in an alkaline soil?

A       cabbage                         7.5–8.0

B       broad beans                   5.5–6.5

C       potatoes                         4.5–6.5

D       tomatoes                        5.5–7.0

 

3       Which of the following could a farmer add to his soil to make it less acidic?

A       lime

B       peat

C       compost

D       universal indicator

 

4       Which of the following does not cause weathering of rocks?        

A       acid rain

B       rain and wind

C       light and dark

D       changes in temperature

 

9Gb

1       Which of the following is not responsible for making rainwater acidic?

A       lead dioxide

B       carbon dioxide

C       sulphur dioxide

D       nitrogen dioxide

 

2       Which of the following is one of the main causes of acid rain?

A       weathering of rocks

B       photosynthesis in plants

C       power stations burning fossil fuels

D       farmers putting peat on their soil

 

3       Which of the following types of rock is most affected by acid rain?

A       slate

B       granite

C       marble

D       sandstone

4       A catalytic converter helps reduce air pollution and acid rain.

Where in a car will you find a catalytic converter?

A       fuel tank

B       air filter

C       oil filter

D       exhaust system

 

9Gc

1       The network of air quality monitoring stations has been set up to:

A       reduce air pollution.

B       improve weather forecasting.

C       measure levels of air pollution.

D       neutralise acid rain before it enters rivers and lakes.

 

2       Which of the following might a scientist use to monitor pollution in rainwater?

A       universal indicator

B       limewater

C       thermometer

D       burning splint

 

3       The data below shows how the mean annual pH of rainwater changed
at four different monitoring stations with time.
At which monitoring station were the problems of air pollution getting worse?

 

Monitoring	Mean annual pH of rainwater (year)
station	2000	2001	2002	2003	2004
A	5.6	5.8	5.9	5.6	5.5
B	5.6	5.0	4.2	4.4	3.7
C	4.9	4.8	5.1	5.7	5.7
D	4.1	4.5	4.8	4.3	4.9

 

4       How does saving energy by turning off lights and other electrical appliances,
also help to reduce acid rain?

A       It reduces the heat losses to the environment.

B       It increases the amount of light available for photosynthesis.

C       It reduces the amount of fossil fuels being burned in power stations.

D       It cuts down the amount of pollution produced by light bulbs and other
electrical appliances.

 

9Gd

1       What is meant by global warming?

A       the destruction of the ozone layer

B       that some places on Earth are getting hotter

C       the surface temperature of the Sun increasing

D       the increasing average temperatures around the world

 

2       Many scientists have linked increasing levels of carbon dioxide in our
atmosphere with increasing temperatures around the world.
Which of the following has helped increase the carbon dioxide levels?

A       the effect of acid rain

B       the destruction of the ozone layer

C       cutting down large areas of forest

D       increasing numbers of lightning storms

 

3       Which of the following would be one of the effects of global warming?

A       more acid rain

B       fish being killed in lakes

C       flooding of low-lying areas

D       increased numbers of skin cancers

 

4       Some scientists do not agree that global warming will occur.
Why are some scientists not sure what will happen?

A       Acid rain will cause temperatures to decrease.

B       The situation is very complex and difficult to predict.

C       Our temperature measurements are not accurate at present.

D       An ice age is about to start and so temperatures will definitely fall.