hot deserts Flashcards
1
Q
where are hot deserts found?
A
30 degrees north or south of the equator
2
Q
what is a desert?
A
an area that recieves less than 250mm of water per year
3
Q
where is the thar desert?
A
on the border of india and Pakistan
4
Q
give 4 ways the thar desert economically develops
A
- mineral extraction
- farming
- tourism
- energy deposits
5
Q
what are 3 factors which hinder the thar deserts economical development?
A
- extreme temperature
- lack of water supply
- inaccessibility
6
Q
define desertification
A
the process of land gradually turning into a desert
7
Q
give 3 causes of desertification
A
- climate change
- overgrazing
- soil erosion
8
Q
define salinisation
A
where high rates of evaporation lead to the build up of salts on the surface. - reduces soil fertility
9
Q
define irrigation
A
artificially applying water to dry land to increase fertility
10
Q
what are 2 strategies used to combat desertification?
A
- irrigation
- planting trees
11
Q
A
