Question 1

Which chemical dissolves in water to form acid rain?

Accepted Answer

Sulfur dioxide

Answer

Oxygen

Answer

Carbon dioxide

Answer

Nitrogen

Question 2

Which is a greenhouse gas?

Accepted Answer

Methane

Answer

Oxygen

Answer

Nitrogen

Answer

Sulfur dioxide

Question 3

Organisms, like some species of fish, can be used as bioindicators. What does this mean?

Accepted Answer

They can be used to monitor pollution levels

Answer

They can measure the pH of the water

Answer

Their population is high if the water is not polluted

Answer

Their population is high if the water is polluted

Question 4

Lions and zebras live in an ecosystem with a high biodiversity. What does this mean?

Accepted Answer

There are many different species living within the ecosystem

Answer

There is a high population of one type of species within the ecosystem

Answer

The ecosystem can support a high population of organisms

Answer

The ecosystem is home to many organisms

Question 5

What is a reason for deforestation?

Accepted Answer

To rear more cattle for beef

Answer

To provide more areas for recreation

Answer

To reduce biodiversity

Answer

To increase the number of habitats for animals

Question 6

Which factor is least likely to cause a decrease in the global human population?

Accepted Answer

Predators

Answer

Lack of food

Answer

Running out of fossil fuels

Answer

Disease

Question 7

Which of the following is an example of a biological consequence of global warming?

Accepted Answer

Changes in migration patterns

Answer

Lakes becoming more acidic

Answer

An increase in the amount of carbon dioxide in the atmosphere

Answer

Increase in biodiversity

Question 8

Which method would increase biodiversity in your garden?

Accepted Answer

Digging a pond

Answer

Cutting the grass

Answer

Removing a hedge

Answer

Building a shed

Question 9

Which is a risk of using toxic chemicals on farmland?

Accepted Answer

Bioaccumulation

Answer

Global warming

Answer

Decrease in herbivorous insects

Answer

Increase in competition between crops and weeds

Question 10

The concentration of which gas in the atmosphere is rising because of increased rice production?

Accepted Answer

Methane

Answer

Carbon dioxide

Answer

Oxygen

Answer

Sulfur dioxide

Question 11

Which statement is true about the effect of deforestation?

Accepted Answer

There is a decrease in carbon dioxide concentration in the atmosphere.

Answer

There is a decrease in soil erosion.

Answer

There is an increase in biodiversity.

Answer

There is a decrease in humidity.

Question 12

The graph shows the effects of sewage discharge into a river. What causes the rapid decrease in oxygen concentration after the sewage discharge?

Accepted Answer

Respiration of bacteria

Answer

Photosynthesis of algae

Answer

Increasing carbon dioxide concentration

Answer

Death of fish

Question 13

Which statement explains why some people argue that being vegetarian conserves resources?

Accepted Answer

Growing crops takes up less space than farming animals

Answer

Growing crops does not cause any pollution

Answer

It is more ethical

Answer

Crops can be grown everywhere

Question 14

What could be a potential disadvantage of protecting natural areas
and reducing deforestation?

Accepted Answer

Reduced food production

Answer

Increased water pollution

Answer

Reduced biodiversity

Answer

Increased likelihood of disease

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