Question

What is the name of the process to clean water using filters?
(A) Sanitation
(B) Sterilization
(C) Purification
(D) Pasteurization

Answer 1

Hint: At the initial stage when we get water from rivers, ground, it contains many minerals and impurities. We can say that it is the contaminated water which we get from natural resources, so water needs to be purified for drinking purposes and human consumption. So, in order to clean water and make it pure, it is cleaned using filters.

Complete answer:
We know that the water we get from natural resources such as rivers and the ground is not pure. This water is not fit for human consumption (especially drinking). So, this needs to be cleaned and it is cleaned using filters.
So, now we will discuss the above mentioned processes as follows:
(A) Sanitation: Sanitation is basically the process of maintaining cleanliness, so it cannot be the correct option.
(B) Sterilization: Sterilization is a process to destroy the bacteria, fungi and other microorganisms from a surface and hence, it is not the correct option.
(C) Purification: Purification is a process to purify or clean water, so it is the correct option.
(D) Pasteurization: Pasteurization can be defined as the partial sterilization of any product like milk and it is not the correct option.

Hence, the correct option is (C) Purification.

Note:
We should remember that purification is a process to remove all contaminants from water (or any other substance) like organic or inorganic contaminants. It is done to clean or purify the water, so that it becomes safe for drinking and human consumption. This process reduces the concentration of contaminants from water.