Final Geography

Question 1

Which ecosystems have the lowest temperatures?

Answer 1

polar ecosystem

Question 2

State two climatic conditions needed for a tropical rainforest to grow?

Answer 2

• There has to be a plentiful supply over rainfall (over 2000mm a year)
• There has to be high temperatures throughout the year (around 27^oC)

Question 3

How might sustainbale use and management explain why some countires have lowere rates of rainforest loss?

Answer 3

• Education - Once local people, buisnesses and politicians understand the value of biodiversity, particularly in terms of tourism, they will be more likely to want to protect it from deforestation.

Question 4

Explain two ways in which cutting down trees changes the water cycle?

Answer 4

• Less trees means less evapotranspiration. Subsequently there is a decline in rainfall which affects the water cycle
• Deforestation can lead to less water is stored in the biosphere as a result of deforestation

Question 5

Name one ecosystem, other than polar regions, which would also have low annual precipitation

Answer 5

Hot deserts

Question 6

Explain why it is difficult for plants to grow in polar ecosystems

Answer 6

• It is difficult for plants to grow in polar regions because the ground is permanently frozen and there is lots of ice