Match the items of Column I with the items of Column II with reference to sewage.

Column - I Column - II

A Inorganic impurities 1 Phosphorus and nitrogen

B Organic impurities 2 Nitrates and phosphates

C Nutrients 3 Cholera and typhoid

D Bacteria 4 Pesticides and herbicides

Inorganic impurities - Nitrates and phosphates

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Organic impurities - Pesticides and Herbicides

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Nutrients - Phosphorus and nitrogen

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Bacteria - Cholera and typhoid

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Solution

The correct option is A Inorganic impurities - Nitrates and phosphates

Inorganic impurities - 2. Nitrates and phosphates

Organic impurities - 4. Pesticides and Herbicides

3. Nutrients - 1. Phosphorus and nitrogen

Bacteria - 3. Cholera and typhoid

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Question 19

Match the items of Column I with the items of Column II with reference to sewage.

$\begin{matrix} C o l u m n I & C o l u m n I I (a) I n o r g a n i c i m p u r i t i e s & (i) p h o s p h o r u s a n d n i t r o g e n (b) O r g a n i c i m p u r i t i e s & (i i) n i t r a t e s a n d p h o s p h a t e s (c) N u t r i e n t s & (i i i) c h o l e r a a n d t y p h o i d (d) B a c t e r i a & (i v) p e s t i c i d e s a n d h e r b i c i d e s \end{matrix}$

Q. Read the following statements carefully and choose the correct options.

(i) The inorganic impurities present in wastewater are herbicides, pesticides, oil and more.
(ii) The organic impurities are phosphates, metals, nitrates, and more.
(iii) There are no germs or bacteria present in wastewater.

Q. Match the impurities present in sewage with their types.

(i) Human faeces	(a) Inorganic
(ii) Metals	(b) Organic
(iii) Vibrio cholerae	(c) Bacteria

Q. This section questions each with two columns I and II. Match the items given in column I with that of column II.

Q. Match the items in Column I and with those in Column II

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Land Pollution - Pesticides and Biomagnificaiton

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	Column - I		Column - II
A	Inorganic impurities	1	Phosphorus and nitrogen
B	Organic impurities	2	Nitrates and phosphates
C	Nutrients	3	Cholera and typhoid
D	Bacteria	4	Pesticides and herbicides

Match the items of Column I with the items of Column II with reference to sewage.​ Column - I Column - II A Inorganic impurities 1 Phosphorus and nitrogen B Organic impurities 2 Nitrates and phosphates C Nutrients 3 Cholera and typhoid D Bacteria 4 Pesticides and herbicides

The correct option is A Inorganic impurities - Nitrates and phosphates Inorganic impurities - 2. Nitrates and phosphates​​ Organic impurities - 4. Pesticides and Herbicides​ 3. Nutrients - 1. Phosphorus and nitrogen​ Bacteria - 3. Cholera and typhoid

Match the items of Column I with the items of Column II with reference to sewage.

Column - I Column - II

A Inorganic impurities 1 Phosphorus and nitrogen

B Organic impurities 2 Nitrates and phosphates

C Nutrients 3 Cholera and typhoid

D Bacteria 4 Pesticides and herbicides

The correct option is A Inorganic impurities - Nitrates and phosphates

Inorganic impurities - 2. Nitrates and phosphates

Organic impurities - 4. Pesticides and Herbicides

3. Nutrients - 1. Phosphorus and nitrogen

Bacteria - 3. Cholera and typhoid