0654 B13 Impacts of Humans on Ecosystems Quiz

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Questão 1 de 30

The diagram represents the carbon cycle.

Which process is represented by arrow X?

Selecione uma das seguintes:

A combustion
B feeding
C photosynthesis
D respiration

Explicação

Questão 2 de 30

The graph shows the increase in the human population of the world since 1630.

What was the longest time taken for the population to double?

Selecione uma das seguintes:

A 100 years
B 200 years
C 300 years
D 400 years

Explicação

Questão 3 de 30

The graphs show the number of carnivores in a habitat over a period of time.
At time X the herbivores in their food chain are removed from the habitat.

Which graph shows the effect of this on the number of carnivores?

Selecione uma das seguintes:

Explicação

Questão 4 de 30

The diagram shows the positions of four farms and the concentrations of nitrate at different points in a river.

Which farm is likely to have been using too much fertiliser on its land?

Selecione uma das seguintes:

Explicação

Questão 5 de 30

The table shows some information about two closely related species of sea bird.
Sewage pollution at the mouth of a river destroys its fish stocks.

What is likely to happen to local populations of these birds?

Selecione uma das seguintes:

A There will be no change to either species.
B Species X numbers will decrease, species Y will remain constant.
C Species Y numbers will decrease, species X will remain constant.
D Both species numbers will increase.

Explicação

Questão 6 de 30

Three human activities are listed.
1 burning fossil fuels
2 deforestation
3 overusing fertilisers

Which activities can cause the change shown in the graph?

Selecione uma das seguintes:

A 1, 2 and 3
B 1 and 2 only
C 1 only
D 2 and 3 only

Explicação

Questão 7 de 30

What is reduced after deforestation?

Selecione uma das seguintes:

A force of rain hitting the ground
B rainwater run-off
C soil erosion
D soil fertility

Explicação

Questão 8 de 30

The diagram shows four positions on a river where water samples were taken.

Which graph shows oxygen concentrations in the river?

Selecione uma das seguintes:

Explicação

Questão 9 de 30

A large amount of herbicide is applied to a field. Heavy rainfall carries much of it into a nearby lake.

What will be the effect of this on the lake?

Selecione uma das seguintes:

A Herbicide decreases the growth of water plants.
B Herbicide decreases the number of bacteria.
C Herbicide increases the rate of evaporation from the lake.
D Herbicide kills the fish.

Explicação

Questão 10 de 30

The table shows the amount of carbon dioxide in the atmosphere in three different years.

What is the most likely cause of this change?

Selecione uma das seguintes:

A destruction of rainforests
B increased use of fertilisers containing nitrogen
C pollution of air by sulfur dioxide
D rise in the sea level

Explicação

Questão 11 de 30

Which two gases both contribute to global warming?

Selecione uma das seguintes:

A carbon dioxide and methane
B methane and oxygen
C oxygen and sulfur dioxide
D sulfur dioxide and carbon dioxide

Explicação

Questão 12 de 30

Over-use of fertilisers on farmland causes the chemicals in the fertilisers to be washed into ponds and lakes.
This causes eutrophication resulting in the following events.
1 algae grow
2 fish die
3 bacteria grow
4 oxygen decreases

What is the correct sequence of these events?

Selecione uma das seguintes:

A 1 → 3 → 4 → 2
B 1 → 4 → 3 → 2
C 3 → 4 → 2 → 1
D 4 → 1 → 2 → 3

Explicação

Questão 13 de 30

The concentration of a pesticide in the tissues of the organisms in the following food chain was measured.

Which bar on the chart represents the large fish?

Selecione uma das seguintes:

Explicação

Questão 14 de 30

The diagram shows how sewage is treated.

Why is air bubbled through the aeration tank?

Selecione uma das seguintes:

A to encourage microorganisms to reproduce quickly
B to float the sludge
C to settle the sludge
D to stop microorganisms from reproducing too quickly

Explicação

Questão 15 de 30

Three human activities are listed.
1 burning fossil fuels
2 deforestation
3 overusing fertilisers

Which activities can cause the change shown in the graph?

Selecione uma das seguintes:

A 1, 2 and 3
B 1 and 2 only
C 1 only
D 2 and 3 only

Explicação

Questão 16 de 30

What is a reason for conserving plant species?

Selecione uma das seguintes:

A to absorb oxygen from the air
B to decrease rainfall
C to obtain drugs for medicinal use
D to release carbon dioxide into the air

Explicação

Questão 17 de 30

What is reduced after deforestation?

Selecione uma das seguintes:

A force of rain hitting the ground
B rainwater run-off
C soil erosion
D soil fertility

Explicação

Questão 18 de 30

The diagram shows four positions on a river where water samples were taken.

Which graph shows oxygen concentrations in the river?

Selecione uma das seguintes:

Explicação

Questão 19 de 30

Which process may result in eutrophication in a lake?

Selecione uma das seguintes:

A bleach entering from a factory
B fertilisers entering from farmland
C hot water entering from a power station
D pesticides entering from farmland

Explicação

Questão 20 de 30

Which two gases are the biggest contributors to the greenhouse effect?

Selecione uma das seguintes:

A carbon dioxide and methane
B carbon monoxide and carbon dioxide
C methane and sulfur dioxide
D sulfur dioxide and carbon monoxide

Explicação

Questão 21 de 30

Untreated sewage is released into a river at point X.

Which graph correctly shows changes in oxygen concentration of the water as the river flows away from X?

Selecione uma das seguintes:

Explicação

Questão 22 de 30

What changes in combustion and deforestation increase carbon dioxide in the atmosphere?

Selecione uma das seguintes:

Explicação

Questão 23 de 30

What is the principal source of energy input into a biological system?

Selecione uma das seguintes:

A consumer
B decomposer
C producer
D Sun

Explicação

Questão 24 de 30

Some of the stages of eutrophication are listed.
1 death of organisms requiring dissolved oxygen in water
2 increased availability of nitrate and other ions
3 increased decomposition after death of producers
4 reduction in dissolved oxygen

What is the correct order of these stages in eutrophication?

Selecione uma das seguintes:

A 2 → 1 → 4 → 3
B 2 → 3 → 4 → 1
C 3 → 2 → 4 → 1
D 3 → 4 → 1 → 2

Explicação

Questão 25 de 30

The list shows changes that occur in a lake which is polluted by nitrogen-containing fertiliser.
1 decomposers feed on plants
2 growth of algae increases on the lake’s surface
3 oxygen levels decrease in the lake
4 underwater plants die

In which order do these changes occur?

Selecione uma das seguintes:

A 2 → 4 → 1 → 3
B 2 → 3 → 4 → 1
C 3 → 4 → 2 → 1
D 3 → 4 → 1 → 2

Explicação

Questão 26 de 30

The bloodworm is an organism that is found in heavily polluted water.
The diagram shows where raw sewage flows into a river.

Where would there be fewest bloodworms?

Selecione uma das seguintes:

Explicação

Questão 27 de 30

What are the possible effects of deforestation?

Selecione uma das seguintes:

Explicação

Questão 28 de 30

Large areas of tropical forests have been cleared to grow monocultures of palm oil plants.

Which effect will this have on the ecosystem?

Selecione uma das seguintes:

A The use of fossil fuels in the area will decrease.
B The use of pesticides in the area will decrease.
C The variety of species in the area will decrease.
D The variety of species in the area will increase.

Explicação

Questão 29 de 30

What is not a reason for using chemical fertilisers in food production?

Selecione uma das seguintes:

A improving growth rate
B improving mineral content of the soil
C increasing yields
D reducing competition with weeds

Explicação

Questão 30 de 30

The diagram shows how sewage is treated.

Why is air bubbled through the aeration tank?

Selecione uma das seguintes:

A to encourage microorganisms to reproduce quickly
B to float the sludge
C to settle the sludge
D to stop microorganisms from reproducing too quickly

Explicação

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	Criado por Jeffrey Piggott quase 6 anos atrás

Quiz for 0654 Coordinated Sciences on the impact of humans on natural ecosystems.

0654 B13 Impacts of Humans on Ecosystems Quiz

Questão 1 de 30

The diagram represents the carbon cycle. Which process is represented by arrow X?

Selecione uma das seguintes:

Explicação

Questão 2 de 30

The graph shows the increase in the human population of the world since 1630. What was the longest time taken for the population to double?

Selecione uma das seguintes:

Explicação

Questão 3 de 30

The graphs show the number of carnivores in a habitat over a period of time. At time X the herbivores in their food chain are removed from the habitat. Which graph shows the effect of this on the number of carnivores?

Selecione uma das seguintes:

Explicação

Questão 4 de 30

The diagram shows the positions of four farms and the concentrations of nitrate at different points in a river. Which farm is likely to have been using too much fertiliser on its land?

Selecione uma das seguintes:

Explicação

Questão 5 de 30

The table shows some information about two closely related species of sea bird. Sewage pollution at the mouth of a river destroys its fish stocks. What is likely to happen to local populations of these birds?

Selecione uma das seguintes:

Explicação

Questão 6 de 30

Three human activities are listed. 1 burning fossil fuels 2 deforestation 3 overusing fertilisers Which activities can cause the change shown in the graph?

Selecione uma das seguintes:

Explicação

Questão 7 de 30

What is reduced after deforestation?

Selecione uma das seguintes:

Explicação

Questão 8 de 30

The diagram shows four positions on a river where water samples were taken. Which graph shows oxygen concentrations in the river?

Selecione uma das seguintes:

Explicação

Questão 9 de 30

A large amount of herbicide is applied to a field. Heavy rainfall carries much of it into a nearby lake. What will be the effect of this on the lake?

Selecione uma das seguintes:

Explicação

Questão 10 de 30

The table shows the amount of carbon dioxide in the atmosphere in three different years. What is the most likely cause of this change?

Selecione uma das seguintes:

Explicação

Questão 11 de 30

Which two gases both contribute to global warming?

Selecione uma das seguintes:

Explicação

Questão 12 de 30

Over-use of fertilisers on farmland causes the chemicals in the fertilisers to be washed into ponds and lakes. This causes eutrophication resulting in the following events. 1 algae grow 2 fish die 3 bacteria grow 4 oxygen decreases What is the correct sequence of these events?

Selecione uma das seguintes:

Explicação

Questão 13 de 30

The concentration of a pesticide in the tissues of the organisms in the following food chain was measured. Which bar on the chart represents the large fish?

Selecione uma das seguintes:

Explicação

Questão 14 de 30

The diagram shows how sewage is treated. Why is air bubbled through the aeration tank?

Selecione uma das seguintes:

Explicação

Questão 15 de 30

Three human activities are listed. 1 burning fossil fuels 2 deforestation 3 overusing fertilisers Which activities can cause the change shown in the graph?

Selecione uma das seguintes:

Explicação

Questão 16 de 30

What is a reason for conserving plant species?

Selecione uma das seguintes:

Explicação

Questão 17 de 30

What is reduced after deforestation?

Selecione uma das seguintes:

Explicação

Questão 18 de 30

The diagram shows four positions on a river where water samples were taken. Which graph shows oxygen concentrations in the river?

Selecione uma das seguintes:

Explicação

Questão 19 de 30

Which process may result in eutrophication in a lake?

Selecione uma das seguintes:

Explicação

Questão 20 de 30

Which two gases are the biggest contributors to the greenhouse effect?

The diagram represents the carbon cycle.

Which process is represented by arrow X?

The graph shows the increase in the human population of the world since 1630.

What was the longest time taken for the population to double?

The graphs show the number of carnivores in a habitat over a period of time.
At time X the herbivores in their food chain are removed from the habitat.

Which graph shows the effect of this on the number of carnivores?

The diagram shows the positions of four farms and the concentrations of nitrate at different points in a river.

Which farm is likely to have been using too much fertiliser on its land?

The table shows some information about two closely related species of sea bird.
Sewage pollution at the mouth of a river destroys its fish stocks.

What is likely to happen to local populations of these birds?

Three human activities are listed.
1 burning fossil fuels
2 deforestation
3 overusing fertilisers

Which activities can cause the change shown in the graph?

The diagram shows four positions on a river where water samples were taken.

Which graph shows oxygen concentrations in the river?

A large amount of herbicide is applied to a field. Heavy rainfall carries much of it into a nearby lake.

What will be the effect of this on the lake?

The table shows the amount of carbon dioxide in the atmosphere in three different years.

What is the most likely cause of this change?

Over-use of fertilisers on farmland causes the chemicals in the fertilisers to be washed into ponds and lakes.
This causes eutrophication resulting in the following events.
1 algae grow
2 fish die
3 bacteria grow
4 oxygen decreases

What is the correct sequence of these events?

The concentration of a pesticide in the tissues of the organisms in the following food chain was measured.

Which bar on the chart represents the large fish?

The diagram shows how sewage is treated.

Why is air bubbled through the aeration tank?

Three human activities are listed.
1 burning fossil fuels
2 deforestation
3 overusing fertilisers

Which activities can cause the change shown in the graph?

The diagram shows four positions on a river where water samples were taken.

Which graph shows oxygen concentrations in the river?

Untreated sewage is released into a river at point X.

Which graph correctly shows changes in oxygen concentration of the water as the river flows away from X?

The list shows changes that occur in a lake which is polluted by nitrogen-containing fertiliser.
1 decomposers feed on plants
2 growth of algae increases on the lake’s surface
3 oxygen levels decrease in the lake
4 underwater plants die

In which order do these changes occur?

The bloodworm is an organism that is found in heavily polluted water.
The diagram shows where raw sewage flows into a river.

Where would there be fewest bloodworms?

Large areas of tropical forests have been cleared to grow monocultures of palm oil plants.

Which effect will this have on the ecosystem?

The diagram shows how sewage is treated.

Why is air bubbled through the aeration tank?