Questions 1 Flashcards
(29 cards)
How does climate change affect the water supply
An increase in temperature means higher evaporation and increase in perception so there should be an increase in water supply.
How does pollution affect water supply
A. Reduces supply of clean freshwater
B. Pollution leads to dirty water
What are reasons for the rising demand in water
Population, agriculture, indrustrilatuon
Ensuring water supply
Careful management of water catchment areas, desalination l, Reclaiming water
Water catchment meaning
An area where all water, sediment, and dissolved minerals into common outlet
Pasture
The land that is used to grow grass or crops to feed animals
Arable land
Land suitable for farming
Uses of land
Agriculture, pasture, build cities and facilities
Land is scarce y
30% of earth is land
Only 10% is arable and habitable
Perciption
Unevenly distributed throughout the worl
Reclaimed water
Cannot be used for drinking
Overgrazing
When pasture is grazed without rest it leads to desertifiction
4 to increase land supply
Land clearance, land reclamation, restore derlict land
Reasons to clear land
Farming, pasture, housing, commercial reasons
Give one reason for commercial farming
Exported to more developed countries
Land reclaimtion
Creation of new land that once was ocean
Describe how land can be reclaimed
Dykes to keep water out after land is reclaimed, using modern building technology
Reclaimed water is called
Folder
Meaning derlict land
Soil is no longer good for cultivation is abandoned
Deslalintion
The process of water filtertion
Population denstity
Number of ppl in square unit of land
Resource
Something u use to earn living or stay alive
Causes of ersion
To much tilling, the removal of cover vegetion, land is too dry
Restore fertility of land how
Add fertilzers
