Question

Which of the following substances are commonly used in a filter?
A.Charcoal
B. Sand
C. Both (a) and (b)
D. Aluminum chloride

Answer 1

Here is your answer ⬇️⬇️⬇️⬇️

C. Both (a) and (b)

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Answer 2

Both Charcoal and Sand are commonly used in a filter. (Option C)

Explanation:

• Microorganisms, which are often harmless, develop and attach to the surface of sand particles inside a biological sand water filter. These organisms develop a biofilm that traps and eats other microorganisms, such as those that make people sick, as water runs slowly through the sand.
• The high porosity of activated charcoal is a crucial feature in the effectiveness of charcoal water filters. The adsorption process is how activated charcoal works. Adsorption, as a contrast to absorption, chemically rather than physically binds these contaminants.