The following water samples are given with th | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $BOD$ (Biochemical Oxygen Demand) refers to the amount of oxygen that would be consumed if all the organic matter in one liter of water were oxidi

Vedclass · Accepted Answer

Sample $w$

Vedclass · Answer

(C) $BOD$ (Biochemical Oxygen Demand) refers to the amount of oxygen that would be consumed if all the organic matter in one liter of water were oxidized by bacteria.Greater $BOD$ of waste water indicates higher pollution levels because more organic matter is present for decomposition.Comparing the given values:Sample $w = 6 \ mg/L$Sample $x = 6.5 \ mg/L$Sample $y = 7 \ mg/L$Sample $z = 10.3 \ mg/L$Since Sample $w$ has the lowest $BOD$ value $(6 \ mg/L)$,it contains the least amount of organic matter and therefore has the lowest level of pollution.

The following water samples are given with their $BOD$ values. Which sample has the lowest level of pollution?
Sample $w - 6 \ mg/L$,Sample $x - 6.5 \ mg/L$
Sample $y - 7 \ mg/L$,Sample $z - 10.3 \ mg/L$

Similar Questions

In an aquatic food chain,the highest concentration of $DDT$ is found in which of the following?

What is $D.D.T$?

Discuss the following in brief:
$(a)$ Greenhouse gases
$(b)$ Catalytic converters
$(c)$ Ultraviolet-$B$ $(UV-B)$

What do you understand by Snow-blindness?

Snow-blindness in the Antarctic region is caused by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The following water samples are given with their $BOD$ values. Which sample has the lowest level of pollution?Sample $w - 6 \ mg/L$,Sample $x - 6.5 \ mg/L$Sample $y - 7 \ mg/L$,Sample $z - 10.3 \ mg/L$