Sand dunes

What natural phenomenon caused the degradation of the sand dunes at Constantine Bay?

• Volcanic eruptions

• Earthquakes

• Tsunamis

• Frequent and extreme storms

What is 'blue carbon'?

• Carbon emissions from ships

• Carbon dioxide absorbed by blue algae

• A type of carbon found in the deep sea

• Carbon stored in marine and coastal ecosystems

Which ecosystem is NOT mentioned as a blue carbon sink?

• Sea grass

• Salt marshes

• Tropical rainforests

• Coral reefs

How much faster do salt marshes store carbon compared to tropical rainforests?

• 10 times faster

• 55 times faster

• 25 times faster

• 40 times faster

What was the innovative solution used to combat the degradation of the sand dunes?

• Planting more trees

• Installing sand barriers

• Building a concrete wall

• Using donated Christmas trees

How many Christmas trees were initially donated for the project?

• 50 trees

• 75 trees

• 80 trees

• 65 trees

How much sand was retained in the Christmas tree network?

• Four thousand tons

• Two thousand tons

• One thousand tons

• Three thousand tons

What was the outcome of the project as observed during the follow-up visit?

• The project was deemed a failure

• The dunes gradually built themselves back up

• No significant change was observed

• The dunes were completely restored

Who provided support for the project?

• The national government

• Cornwall Council and the local community

• A private environmental organization

• An international climate change committee