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29/10/2020 12:01 pm
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Algae are useful because they
(a) purify the atmosphere
(b) are large in number
(c) are used in fermentation
(d) are used to study respiration
1 Answer
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29/10/2020 12:03 pm
(a) purify the atmosphere
Explanation:
Algae is a collective term for all those chlorophyll bearing organisms which are thalloid. So, during photosynthesis by taking in CO2 and giving out O2, they purify the atmosphere.