ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -Water stress occurs when the demand for water exceeds the available amount during a certain period or when poor quality restricts its use. Water stress causes deterioration of fresh water resources in terms of quantity (aquifer over-exploitation, dry rivers, etc.)

Detailed explanation-2: -Water scarcity is a physical, objective reality that can be measured consistently across regions and over time. “Water stress” refers to the ability, or lack thereof, to meet human and ecological demand for water. Compared to scarcity, “water stress” is a more inclusive and broader concept.

Detailed explanation-3: -The issue explained. Water scarcity is a relative concept. The amount of water that can be physically accessed varies as supply and demand changes. Water scarcity intensifies as demand increases and/or as water supply is affected by decreasing quantity or quality. Water is a finite resource in growing demand.

Detailed explanation-4: -Refers to a lack of water and the reaction of the vine plant. Hydric stress blocks the vegetative cycle, imparting color changes, defoliation, sugar progression or even a drop in yield during some periods of heatwave.

Detailed explanation-5: -Water insecurity-the lack of adequate and safe water for a healthy and productive life-is one of the greatest threats facing humans in the coming century. By 2030, half of the world is expected to be living in water-stressed conditions, given current climate change scenarios.