Correct option is C
The Correct Answer is: C. 0.20 to 0.50
Explanation:
Semi-arid regions are characterized by moderate dryness, where water availability is limited but not extremely scarce. The ratio of annual precipitation to potential evapotranspiration (P/PET) is used to classify climate zones.
In semi-arid regions, this ratio typically falls between 0.20 to 0.50, indicating that precipitation covers only 20% to 50% of the water lost through evapotranspiration. This limited moisture defines the vegetation and agricultural practices suitable for these areas.
Information Booster:
Semi-arid regions receive 250 mm to 500 mm of rainfall annually.
Crops in semi-arid areas often include millets, sorghum, and drought-tolerant grasses.
Additional Information:
- Less than 0.05: Represents hyper-arid climates like major deserts (e.g., Sahara).
- 0.05 to 0.20: Corresponds to arid climates (true deserts).
- 0.50 to 0.65: Represents dry sub-humid climates.