2023 MAY (done in class P) Flashcards
one benefit of maintaining a wetland area (2)
- wetlands provide a habitant for wildlife
- so improves thè biodiversity in the area
explain one pressure on wetlands from agriculture and one from altered water flow (3+3)
AGRICULTURE:
- eutrophication
- can occur when fertiliser applied to farmland nearby runs off into water
- causing algae blooms and a decrease in biodiversity
ALTERED WATER FLOW:
- wetlands can be drained
- for development or infrastructure
- in order to house a growing population
explain two ways of managing the economic problems associated with an ageing population (2+2)
1
- raising pension age
- so individuals are paid pensions for a shorter period of time
2
- encouraging immigration
- to increase tax and workforce
explain how two physical factors can lead to an uneven population distribution in one place you have studied (2+2)
1
- population will be more dense in areas close to rivers in China
- where there are abundant water supplies for agriculture and domestic consumption
2
- population will be more sparse in areas with extreme climates
- difficult to practice agriculture
suggest one reason for the trend in weather related disasters between 1980 and 2019 (2)
- increasing due to global warming
- due to rising temperatures causing more cyclones