Deforestation

Question 1

How do rice fields contribute to the release of methane?

Answer 1

They have warm, waterlogged conditions perfect for microorganisms that produce CH4

Question 2

How does arable farming release methane?

Answer 2

The bacteria in the cattle’s digestive system produce CH4

Question 3

How is peat formed?

Answer 3

Bogs are acidic and waterlogged areas in which plant matter does not fully decay because of lack of O2.

Gradually the semi-decayed matter builds up to form peat

Question 4

What are 3 uses of peat bogs?

Answer 4

The area can be drained for farming

Cut up and dried for fuel

Sold as compost

Question 5

What happens when peat bogs are drained?

Answer 5

The peat starts to decay, releasing CO2 into the atmosphere

Question 6

What may global warming cause?

Answer 6

Rise in sea level

Change in climate

Change in migration patterns

Change in species distribution

Question 7

What 4 things does deforestation cause?

Answer 7

CO2 emissions

Less CO2 taken in

Loss of biodiversity

CH4 emissions

Question 8

What does sequestered mean?

Answer 8

That the CO2 is dissolved in the water

Question 9

How does deforestation result in an increase in CO2 Emissions?

Answer 9

> there are less trees to take in CO2

> the remaining plant material rots: microorganism respite which produces CO2

> burning of wood releases CO2

Question 10

How does deforestation result in a reduction of biodiversity?

Answer 10

The habitat has been destroyed, meaning that there is no food/shelter for animals.