Tina: Though most of the Earth’s surface is covered with water, we are facing unavailability of water due to pollution.
John: Water pollution does not affect the availability of water for human use.
A
John
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B
Tina
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Solution
The correct option is B
Tina
About 71 percent of the Earth's surface is water-covered.
All forms of pollution eventually make their way to the water.
Air pollution settles onto lakes and oceans. Land pollution can seep into an underground stream, then into a river, and finally into the ocean. Thus, waste dumped in a vacant lot can eventually pollute a water supply. It can cause contamination of drinking water – thereby contributing to waterborne illnesses.