Question

Earth is known as the blue planet because 71% of the earth's surface is covered with water, but we still face water shortage. What can be the possible reason for this?

• A. Ocean water cannot be used on land
• B. Most of the available water is salty and unfit for consumption
• C. Ocean water is full of disease-causing microbes
• D. Ocean water is available only in coastal areas

Answer 1

The correct option is B

Most of the available water is salty and unfit for consumption

Though, about 71% of the Earth’s surface is covered with water, we still face water shortages because most of the water is available in oceans. This water is salty and cannot be used for our day to day activities.
The water in lakes and rivers is also getting polluted everyday. The level of groundwater is also going down. We need to make sure that we use water judiciously so that freshwater is available for everyone.
We can adopt techniques such as rainwater harvesting so that we can save rainwater for future use.