Odours and taste may result due to presence of -
(a) micro organisms either dead or alive
(b) dissolved gases such as oxygen, carbon dioxide, methane etc
(c) mineral substances such as sodium chloride, iron compounds, etc
(d) all of the above.
The correct Answer Is
(d) all of the above
(a) micro organisms either dead or alive
(b) dissolved gases such as oxygen, carbon dioxide, methane etc
(c) mineral substances such as sodium chloride, iron compounds, etc
(d) all of the above.
The correct Answer Is
(d) all of the above
