Water Resources and Conservation - Water Scarcity and Conservation Techniques

Water Scarcity: It is the lack of sufficient available water resources ($H_2O$) to meet the demands of water usage within a region.

Causes of Water Scarcity: Over-exploitation of groundwater, increasing population, pollution of water bodies, and unequal distribution of $H_2O$ across different regions.

Rainwater Harvesting: A technique used to collect and store rainwater from rooftops or open grounds to replenish groundwater or for direct use. It helps in increasing the water table.

Drip Irrigation: A modern agricultural technique where $H_2O$ is delivered directly to the base of the plant drop-by-drop using pipes, minimizing wastage through evaporation or runoff.

The 3 Rs of Water Conservation: Reduce (using less water), Reuse (using the same water for different purposes, like using kitchen $H_2O$ for plants), and Recycle (treating wastewater for reuse).

Traditional Water Conservation: Ancient methods in India included the use of 'Baolis' (step-wells) and 'Johads' to store $H_2O$ for dry seasons.

Groundwater: Water found underground in the cracks and spaces in soil, sand, and rock. It is stored in and moves slowly through geologic formations called aquifers.