Topic 4.2 Access to Fresh Water

Front

What is potable water?

Back

Water that is free from impurities, pollution, and bacteria, making it safe to drink.

Front

Which crop uses the most water to produce 1 kg of food?

Back

Beef.

Front

What is the primary source of energy that evaporates the most water from Earth's surface?

Back

The Sun.

Front

What does it mean for a groundwater aquifer to become unsustainable?

Back

It becomes unsustainable when more water is extracted than is replenished.

Front

What is enhancing water supplies by building a large dam to store precipitation called?

Back

Enhancing by reservoirs.

Front

Define freshwater.

Back

Water that is not salty and is found in rivers, lakes, and aquifers.

Front

What is the significance of aquifers in water supply?

Back

Aquifers are underground layers of water-bearing rock that store groundwater.

Front

What is the process of desalination?

Back

The process of removing salt and other impurities from seawater to make it suitable for drinking.

Front

What is rainwater harvesting?

Back

The collection and storage of rainwater for reuse before it reaches the ground.

Front

What is the role of the water cycle in freshwater availability?

Back

The water cycle continuously recycles water through evaporation, condensation, and precipitation.