A) Algae increase the level of dissolved oxygen in the immediate environment
B) Algin is obtained from red algae, and carrageenan from brown algae
C) Agar - agar is obtained from Gelidium and Gracilaria
D) Laminaria and Sargassum are used as food
Correct Answer: B
Solution :
Algin is obtained from brown algae, and carrageenan from red algae.
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