Environmental Risks of Economic Activity (Cambridge (CIE) IGCSE Geography)

Study Fig. 6.2, which shows information about human influence on the greenhouse effect.

Using Fig. 6.2 only, explain how humans are influencing the natural greenhouse effect.

Study Fig. 6.1, which shows information about threats to the natural environment in the Caspian Sea.

(i)

 Identify the main source of pollution in the Caspian Sea.

[1]

(ii)

Using information from Fig. 6.1 only, name:
– a major urban area within 50 km of the Caspian Sea .........................................................................................
– a river which flows into the Caspian Sea.

[2]

(iii)

Using evidence from Fig. 6.1 only, suggest three likely impacts on the natural environment of pollution in the Caspian Sea.
1 ...............................................................................
2 ...............................................................................
3 ................................................................................

[3]

Study Figs. 6.2, 6.3 and 6.4, which are photographs of economic activities which increase greenhouse gases in the atmosphere.

Fig 6.2 

Fig 6.3

Fig 6.4

Explain how each of the economic activities shown in Figs. 6.2, 6.3 and 6.4 increase greenhouse gases in the atmosphere.
Fig. 6.2 ....................................................................................
Fig. 6.3 ....................................................................................
Fig. 6.4 .....................................................................................

Study Fig. 6.1, which shows information about economic activities and threats to the natural environment.

(i)

What is meant by visual pollution?

[1]

(ii)

Suggest two ways in which agriculture may cause soil erosion.

[2]

(iii)

Name three different economic activities shown in Fig. 6.1 and explain how each one may pollute water.

Economic activity 1 ........................................

Economic activity 2 ........................................

Economic activity 3 ........................................

[3]

Study Fig. 6.2, which shows advice about conservation of natural resources.

Explain how following the advice given in Fig. 6.2 can help to conserve natural resources.

Study Fig. 6.2, which shows information about desertification in Northern Africa.

Fig. 6.2

Describe the distribution of the areas in Northern Africa where the risk of desertification is very high.