Safe and clean water is defined as:a)Free from pathogenic agentsb)Free from harmful chemicalsc)Usable for domestic purposesd)All of the aboveCorrect answer is option 'D'. Can you explain this answer?

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Software Development Exam > Software Development Questions > Safe and clean water is defined as:a)Free fro...

Safe and clean water is defined as:

a)
Free from pathogenic agents
b)
Free from harmful chemicals
c)
Usable for domestic purposes
d)
All of the above

Correct answer is option 'D'. Can you explain this answer?

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Verified Answer

Safe and clean water is defined as:a)Free from pathogenic agentsb)Free...

The correct answer is All of the above.

Concept:

Water is called the
"universal solvent
" because
it is capable of dissolving more substances than any other liquid
.
This is important to every living thing on earth.
This allows the water molecule to become attracted to many other different types of molecules.
Water has no definite shape.
It is tasteless.
It is odourless.
It is colourless.
Any colour present in water is due to the presence of
dissolved or suspended impurities in it.
Materials like
air, water, and clear glass
are called
transparent
.
When light encounters transparent materials, almost all of
it passes directly through them
.
Pure water (solely hydrogen and oxygen atoms) has a neutral pH of 7, which is neither acidic nor basic.
Water should be
free from nitrogen organic matter.

Explanation:

The United Nations (UN) and other governments have recognized clean drinking water to be a fundamental human right and a necessary step toward improving living conditions.
Safe drinking water is the water that can is safe for drinking, food preparation, personal hygiene, and other domestic purposes.
The water must meet the required chemical, biological and physical quality standards at the point of supply to the users.
Pathogenic agents such as Escherichia coli, Vibrio cholera, Yersinia enterocolitica, Campylobacter jejuni, and Campylobacter coli, could be present in water which makes the water unhealthy for consumption.
Harmful chemicals such as Chlorine, Chloramines, Mercury, VOCs, etc. can be present in water.

Additional Information

The UN Committee of Economic, Social, and Cultural Rights issued General Comment No. 15 on the right to water in November 2002, declaring that "the human right to water entitles everyone to adequate, safe, acceptable, physically accessible, and inexpensive water for personal and household needs."
"Not only is universal access to sanitation vital for human dignity and privacy, but it is also one of the primary strategies for safeguarding the quality" of water supplies.

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