Questions 1 - 2:
Complete the notes using NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.
- Main focus of lecture: the impact of 1 on the occurrence of dust storms.
- Two main types of impact:
- break up ground surface, e.g. off-road vehicle use
- remove protective plants, e.g. 2
Questions 3 - 6:
Complete the table using NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.
| Name of area | Details |
| USA ‘dust bowl’ | Caused by mismanagement of farmland Decade renamed the 3 |
| West Africa | Steady rise in dust storms over 20-ear period |
| Arizona | Worst dust clouds arise from 4 Dust deposits are hazardous to 5 |
| Sahara | Increased wind erosion has occurred along with long-term 6 |
Questions 7 - 10:
Complete the flow chart using NO MORE THAN THREE WORDS AND/OR A NUMBER for each answer.
- Intensive 7 in Central Asian Republics
- Drop in water in major tributaries
- Total volume of water in lake reduced by 8
- Increase in wind-blown material
- Lake has become more 9
- Serious effects on 10