Carbon cycle management

What is a common feature of wetlands that makes them important for the carbon cycle?

• High elevation

• Water table at or near the surface

• Dry soil conditions

• Rocky terrain

What percentage of the Earth's land surface do wetlands occupy?

• 1-3%

• 6-9%

• 15-20%

• 25-30%

Which greenhouse gases are released due to the destruction of wetlands?

• CO2 and CH4

• O2 and N2

• H2O and CO

• SO2 and NO2

What is the purpose of afforestation in combating climate change?

• To increase urban areas

• To reduce atmospheric CO2 levels

• To promote desertification

• To decrease biodiversity

Which international initiative reflects the need for wetland protection?

• Kyoto Protocol

• International Convention on Wetlands (Ramsar)

• Paris Agreement

• Montreal Protocol

How much wetland area has the UK targeted for restoration by 2020?

• 100 ha

• 250 ha

• 400 ha

• 500 ha

What is the main goal of the REDD scheme?

• To promote urbanization

• To conserve rainforests by placing a monetary value on forest conservation

• To increase agricultural land

• To reduce water pollution

What is the estimated amount of CO2 that wetlands can sequester annually?

• 100,000 tonnes

• 200,000 tonnes

• 364,000 tonnes

• 500,000 tonnes

Which country lost 70% of its wetlands in the twentieth century?

• United States

• Canada

• China

• Brazil

What is the purpose of breaching sea defences in coastal areas?

• To increase urban development

• To restore farmland

• To promote tourism

• To create new wetlands