Water & Carbon Cycles 4 A Level Geography AQA

What is carbon sequestration?

• Capturing CO2 from the atmosphere and putting it into long term storage

• Capturing CO2 from the oceans and putting it into long term storage

• Capturing CO2 from the atmosphere and putting it into short term storage

• Capturing CO2 from the oceans and putting it into short term storage

As a result of increased temperatures the land has warmed up. In Tundra areas warming of the land increases the rate of decay of accumulated dead organic matter leading to the release of CO2 and methane. This will increase temperatures further. What kind of feedback is this?

• Positive feedback

• Negative feedback

When sea ice melts the highly reflective ice is replaced by more heat absorbent water. The ocean can therefore absorb more solar radiation, which amplifies the warming that caused it to melt in the first place. What type of feedback is this?

• Positive feedback

• Negative feedback

When water heats up it expands. So warmer oceans have a greater volume. What is this process?

• Ocean warming

• Geo-sequestration

• Radiative forcing

• Thermal expansion

Which of these agricultural practices prevent carbon loss? Select 2

• Reduced or no tillage

• Reforesting

• Overstocking of grazing animals

• Deforestation

How large is the Amazon rainforest currently?

• 4m km2

• 4.5m km2

• 5m km2

• 5.5m km2

What is the average temperature in the Amazon rainforest?

• 27C

• 28C

• 29C

• 30C

Which of these are strategies for protecting Amazonia? Select 2

• The soya moratorium

• The Marseille Agreement

• The palm oil moratorium

• The UN-REDD global governance programme

Which of these statements is true? It is more than one!

• The river Amazon has over 1000 tributaries

• The water discharged from the river Amazon into the Atlantic Ocean is around 15% of the fresh water entering oceans each day

• Annual precipitation is over 5000mm

• The main cause of deforestation of the Amazon rainforest is to create more room for cattle ranching

Answer explanation

Average annual precipitation is over 2000mm (still a lot!)

What is the UN-REDD programme?

• A unique global partnership: five institutions working for sustainable solutions that reduce poverty and build shared prosperity in developing countries

• The flagship UN knowledge and advisory partnership on forests and climate to reduce forest emissions and enhance forest carbon stocks

• The world’s leading independent conservation organisation. Our mission is to create a world where people and wildlife can thrive together.

• The main deliberative, policymaking and representative organ of the UN

Answer explanation

Answer a is the World Bank

Answer c is the WWF

Answer d is the UN General Assembly