Test: Water Audit for Water Management - Grade 9 MCQ

A water audit studies water usage and wastage in homes, schools, or communities and suggests conservation methods. It helps predict future needs and manage water better.

India has just 4% of global freshwater resources while supporting 18% of the world’s population, making water conservation critical.

Jal Jeevan Mission focuses on providing safe drinking water to rural households and is an important part of water conservation and supply in India.

Primary data is collected directly through surveys, observations, or experiments, e.g., measuring household water usage.

The formula is: Water Used = Flow Rate × Time tap is ON. This helps in measuring daily household or institutional water consumption.

According to Jal Jeevan Mission, the prescribed daily water requirement is 135 litres per person in urban areas and 55 litres per person in rural areas.

Flow caps and aerators reduce water flow from taps without affecting usability, saving large amounts of water.

Groundwater recharge includes contour bunds, check dams, percolation tanks, and borewell recharge. Burning crop residue does not help recharge water.

Greywater (from kitchens, sinks, bathrooms) can be reused safely for irrigation, cleaning, and flushing toilets, thus saving freshwater.

About 70% of rainwater is used for agriculture, 20% for industry, and 10% for domestic use in India.