Drought Flashcards
1
Q
Define drought
A
an extended period of time with lower than normal rainfall, which causes water shortages.
2
Q
where are the areas located that are more susceptibility to drought?
A
within the tropics
3
Q
what are the characteristics of arid regions?
A
- permanently low precipitation
- short growing period - about 75 days
- natural vegetation is sparse
4
Q
why is drought a hazard?
A
water is essential to life
5
Q
name some natural causes or drought
A
meteorological - if an area receives less rainfall then there is a natural shortage of available water
hydrological - lakes and reservoirs start to dry up
6
Q
name some human causes for drought
A
- agricultural
- dam building
- deforestation
