In hydrology, drought is defined as
- AA period of no rainfall for more than one year
- BA period of below-average precipitation affecting water availabilityCorrect
- CA seasonal variation of rainfall
- DA shortage of irrigation water
Solution
Concept
Definition of drought
Step-by-step solution
1. A drought is a prolonged period of below-average precipitation that affects water availability.
Explanation
In hydrology, drought is not only a total absence of rain. It is an extended period of deficient precipitation that reduces water supply for people, crops and ecosystems.
Shortcut
Drought = prolonged below-average rainfall.
Common mistake
Choosing "no rainfall for more than a year".
Correct answer: B) A period of below-average precipitation affecting water availability