EVERYDAY SCIENCE

Detailed explanation-1: -Key facts. Four billion people-almost two thirds of the world’s population-experience severe water scarcity for at least one month each year. Over two billion people live in countries where water supply is inadequate. Half of the world’s population could be living in areas facing water scarcity by as early as 2025.

Detailed explanation-2: -What percentage of the world’s population faces a lack of clean drinking water? 1 in 3 people, or 33% of the world’s population, does not have access to clean drinking water.

Detailed explanation-3: -3% of the earth’s water is fresh. 2.5% of the earth’s fresh water is unavailable: locked up in glaciers, polar ice caps, atmosphere, and soil; highly polluted; or lies too far under the earth’s surface to be extracted at an affordable cost.

Detailed explanation-4: -Unsafe water is responsible for 1.2 million deaths each year. 6% of deaths in low-income countries are the result of unsafe water sources. One-in-four people do not have access to safe drinking water. 6% of the world does not have access to an improved water source.

Detailed explanation-5: -It is estimated that in a few years from now more than one third of the people in the world could face water scarcity. Therefore, the given statement is true.