Question

Which of the following gives smell to water. Spirochetes E coli Pox Algae​

Answer 1

Answer:

these items is necessary and provides an aesthetically ... Escherichia coli gastroenteritis (see gastroenteritis). Food poisoning. Botulism.

Answer 2

Algae like cyanophycean members can cause a foul smell to the water.

• The excessive growth of certain Cyanobacteria(blue-green algae) in water bodies leads to harmful algal bloom.
• An algal bloom is the result of excessive fertilisers runoff from farms, draining of Industrial sewages etc. to the water sources.
• They are capable of secreting cyanotoxins, lethal to aquatic life.
• The unpleasant earthy or muddy odour is the indication of the presence of cyanotoxins in the water bodies.
• Cyanotoxin makes the drinking water unpalatable.
• The common cyanotoxins associated with this bad taste and odour episodes are geosmin and 2-methylisoborneol(MIB).
• Certain cyanotoxins like microcystin, saxitoxin, anatoxin etc. even cause human illness and respiratory disorders.