Biodiversity under pressure and how we protect it

Question 1

Draining peat bogs to sell peat as garden compost harms the climate. Why?

• A. It makes the ozone layer thicker
• B. Peat absorbs too much oxygen
• C. Decaying or burned peat releases stored carbon as carbon dioxide
• D. It creates acid rain

Question 2

A survey found 400 hedgehogs counted in a survey in 2010 and 240 in 2024. What was the percentage decrease?

Answer %

Question 3

Biodiversity: which statement is NOT true?

• A. Breeding programmes can help protect endangered species.
• B. Deforestation reduces biodiversity and adds carbon dioxide to the air.
• C. Global warming is changing where some species can live.
• D. Landfill sites increase the space for wildlife.

Question 4

Which action helps increase biodiversity on farmland?

• A. removing all hedges
• B. growing one crop everywhere
• C. spraying more insecticide
• D. planting hedgerows and leaving wildflower field margins

Question 5

A survey found 150 breeding pairs of a bird species in 2010 and 127.5 in 2024. What was the percentage decrease?

Answer %

Question 6

Biodiversity: which statement is NOT true?

• A. Global warming is changing where some species can live.
• B. Breeding programmes can help protect endangered species.
• C. Fertiliser running into lakes can cause algae to grow and oxygen to fall.
• D. Biodiversity means the number of individuals of one species.

Question 7

Why is high biodiversity good for an ecosystem?

• A. It stops the water cycle
• B. It makes the ecosystem more stable because species depend on many others
• C. It removes all predators
• D. It means fewer species compete

Question 8

A survey found 400 breeding pairs of a bird species in 2010 and 360 in 2024. What was the percentage decrease?

Answer %

Question 9

Biodiversity: which statement is NOT true?

• A. Biodiversity means the number of individuals of one species.
• B. Deforestation reduces biodiversity and adds carbon dioxide to the air.
• C. Fertiliser running into lakes can cause algae to grow and oxygen to fall.
• D. Breeding programmes can help protect endangered species.

Question 10

Rewilding projects reintroduce species such as beavers. What can beavers do for an ecosystem?

• A. Their dams create wetlands that support many other species and reduce flooding downstream
• B. They make rivers flow faster
• C. They remove all fish
• D. They have no effect

Question 11

A survey found 400 breeding pairs of a bird species in 2010 and 240 in 2024. What was the percentage decrease?

Answer %

Question 12

Biodiversity: which statement is NOT true?

• A. Deforestation reduces biodiversity and adds carbon dioxide to the air.
• B. Human activity has no effect on extinction rates.
• C. Fertiliser running into lakes can cause algae to grow and oxygen to fall.
• D. Breeding programmes can help protect endangered species.

Question 13

Which action helps increase biodiversity on farmland?

• A. spraying more insecticide
• B. growing one crop everywhere
• C. removing all hedges
• D. planting hedgerows and leaving wildflower field margins

Question 14

A survey found 250 hedgehogs counted in a survey in 2010 and 225 in 2024. What was the percentage decrease?

Answer %

Question 15

Biodiversity: which statement is NOT true?

• A. Fertiliser running into lakes can cause algae to grow and oxygen to fall.
• B. Biodiversity means the number of individuals of one species.
• C. Breeding programmes can help protect endangered species.
• D. Deforestation reduces biodiversity and adds carbon dioxide to the air.

Question 16

Draining peat bogs to sell peat as garden compost harms the climate. Why?

• A. Decaying or burned peat releases stored carbon as carbon dioxide
• B. Peat absorbs too much oxygen
• C. It creates acid rain
• D. It makes the ozone layer thicker