Water and carbon cycles

Question 1

Which sentence describes one impact of climate change upon global precipitation. Water and carbon cycles rates?(1)

Answer 1

• Temperatures will rise leading to increased evaporation and higher amounts of rainfall in many places, with more intense bursts

Question 2

Which sentence describes one impact of climate change upon global precipitation

Answer 2

Temperatures will rise leading to increased evaporation and higher amounts of rainfall in many places, with more intense bursts

Question 3

To what does the carbon budget refer?

Answer 3

The balance of exchanges between the four major stores of carbon

Question 4

Outline potential impacts of farming practices upon the water cycle. (3)

Answer 4

• Irrigation techniques can divert water from rivers, lowering the local river levels
• Soil compaction by farming practises increases surface runoff upsetting the dynamic equilibrium of the river system
• Deforestation for farming purposes created a variety of issues including less interception - increase flood risk by increasing water entering the river system

Question 5

To what does the carbon budget refer? (1)

Answer 5

• Balance of exchange between the four major stores of carbon

Question 6

Outline potential impacts of farming practices upon the water cycle. (3)

Answer 6

• Can interrupt the natural cycle;

1. Irrigation techniques can divert water from rivers, lowering the local river levels
2. Soil compaction by farming practises increase surface runoff unsetting the dynamic equilibrium of the river system.
3. Deforestation for farming purposes created a variety of issues; less interception = flooding risk by increasing water entering the river system

Question 7

Evaluate the view that human activity is having a greater impact than natural factors on the water cycle. (9 marks)

Answer 7

• Systems