Question

Fill in the blanks :-


1). The human body contains about ______ water.

2). _______ is known as the universal solvent.

3). Pure Water is ______ to litmus paper.

4). Water is a mixture of ______ and ______.

5).Pure water is a ______ conductor of heat and electricity.

6). Water freezes at the ______ °C.

7). Solubility of solids ______ with the rise of temperature.

8). _________ refers to contaminants that enter a waterway through a known and specific source such as a pipe as ditch.

9). Detergents contain _______ like fertilisers.

10). Mercury is a _______ substance.

11). _________ treatment includes processes of degradation of organic matter by microorganisms.

12). For precipitation of phosphorus , ________ salts are added to the wastewater.​

Answer 1

Answer:

1) 35% water contain in human body.

Answer 2

Answer:

1) The human body contains about 60% water.

2) water is known as the universal solvent.

4) Water is a mixture of hydrogen and oxygen.

5) Pure water is a bad conductor of heat and electricity.

6) Water freezes at the 0 degrees Celsius.

7) Solubility of solids increase with the rise of temperature.

8) Point source water pollution refers to contaminants that enter a waterway through a known and specific source such as a pipe as ditch.

10) Mercury is a heavy metal substance.

12) For precipitation of phosphorus , Iron sulphate salts are added to the wastewater.

Hope it helps you dear