Question

Water use is increasing every year since 1950 by,
(A) $4\%-8\%$
(B) $2\%-4\%$
(C) $1\%- 2\%$
(D) $8\%-10\%$

Answer 1

Hint: Water use is increasing every year since 1950 by the value of square and cube of the 2. Water is needed to every organism in this world and as the organisms are increasing, water use is also increasing.

Complete answer:
Water use is increasing every year since 1950 by 4 - 8%. As the population is increasing tremendously, water need is also increasing as water is the basic need for survival. Some places have plenty of water that there is a flood-like situation and some have a scarcity of water.
So, the correct answer is ‘$4\%-8\%$’.

Additional Information: Water: It is a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. it's one of the foremost plentiful and essential compounds. A tasteless and odorless liquid at temperature, it's the important ability to dissolve many other substances. It's vital for all known sorts of life, although it provides no calories or organic nutrients. Its formula is ${ H }_{ 2 }{ O }$, which means that every molecule of water contains one oxygen and two hydrogen atoms, connected by covalent bonds. Water plays a crucial role in the world economy. Approximately, $70\%$ of the freshwater employed by humans goes to agriculture. Fishing in salt and freshwater bodies may be a major source of food for several parts of the planet.

Note: It is found that up to $60\%$ of the human body is water. According to the research, the brain and heart are composed of $73\%$ water, and therefore the lungs are about $83\%$ water.