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Q.

Which one of the following statements is wrong?

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a

Laminaria and Sargassum are used as food.

b

Algin is obtained from green algae

c

Agar-agar is obtained from Gelidium and Gracilaria.

d

Algae increase the level of dissolved oxygen in the immediate environment

answer is B.

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Detailed Solution

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Algin is obtained from brown algae. Algae increase the level of dissolved oxygen in immediate environment due to photosynthesis. Agar-Agar is obtained from red algae Gelidium and Gracilaria. Laminaria and Sargassum are brown algae used as food.

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