Question

Write a short note on water.

Answer 1

Answer:

1. Water is an essential nutrient.

2. Human body contains about 65 - 70 % water.

3. 70 % of water is present by weight in every cell.

4. Blood - plasma has 90 % of water.

5. Loss of water or dehydration can cause problems with the functioning of cells and later on the body.

Explanation:

Weight by weight:

It's a concept in chemistry.

To find weight by weight, we use following formula :

Weight by weight

$= \frac{mass \: of \: solute}{mass \: of \: solution \: } \times 100$

Answer 2

A short note on water:

• Water is a compound made out of Hydrogen and Oxygen. It has two molecules of Hydrogen and one molecule of oxygen.

• Water is essential compound for all living organisms.

• It has no taste or no smell. It is a colorless liquid.

• Water boils at the temperature of 100 degrees Celsius.

• Most of the parts of earth are made up of water. The water in the sea is called sea water and it has a salty taste.

• Water has many uses in our day to day life we drink water. We take bath using water. We wash our plates using water.

• Without water life would be impossible in earth.

• Water has three states they are as follows: Water Vapor, Liquid Water, Gaseous Water.

• We can generate electricity using water this type of electricity is called hydroelectricity it is generated with the help of dams.