1
Q
Which ecosystems have the lowest temperatures?
A
polar ecosystem
2
Q
State two climatic conditions needed for a tropical rainforest to grow?
A
- There has to be a plentiful supply over rainfall (over 2000mm a year)
- There has to be high temperatures throughout the year (around 27oC)
3
Q
How might sustainbale use and management explain why some countires have lowere rates of rainforest loss?
A
- 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.
4
Q
Explain two ways in which cutting down trees changes the water cycle?
A
- 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
5
Q
Name one ecosystem, other than polar regions, which would also have low annual precipitation
A
Hot deserts
6
Q
Explain why it is difficult for plants to grow in polar ecosystems
A
- It is difficult for plants to grow in polar regions because the ground is permanently frozen and there is lots of ice
