land cover change management

Question 1

definition of land change management?

Answer 1

the changes that have taken place in natural environments due to a variety of natural and/or human induced causes

Question 2

definition of adaptation?

Answer 2

adjustment in response to a changed environment. Alterations in processes, practises and structures in urban and agricultural areas.

Question 2

main methods of desalination?

2

Answer 2

• reverse osmosis – uses pressure to force salty water through special membrane, allowing puro water molecules to pass through, leaving behind salts and impurities
• thermal distillation – uses heat to evaporate water from saline water, condenses resulting water vapor to produce fresh water, leaving behind salts and impurities

Question 3

desalination definition and points?

4 points

Answer 3

Definition: process of removing salts and minerals from seawater to produce fresh water

• Helps world population water shortages
• Plants are one possible adaptation to cope with changes to rainfall patterns
• Climate change resulted in increased rainfall variability, some regions experience heavier rainfall and other facing drought
• Less dam water, rain fall shortage

Question 4

impacts of desalination?

1 economic, 2 environmental

Answer 4

economic impacts
- high cost to build and operate plants, leads to increased water bills

environmental impacts
- high energy consumption (increase ghg)
- brine discharge (heavy salt affects marine life)