Question

list any five ways in which algae is useful to us.

Answer 1

Algae is used in various fields by mixing or converting it into other compounds

1) Energy source
2) Fertilizers
3) Pollution control

Answer 2

Many species of Porphyra,Laminaria and Sargassum are among the 70 species of marine algae used as food...
Cetain marine brown and red algae produce large amounts of hydrocolloids (water holding substances)e.g. algin(brown algae) and carrageen (red algae) are commercially used ...
Agar,one of the commercial products obtained from Gelidium and Gracilaria is used to grow microbes and in preparations of icecreams and jellies....
Iodine is extracted from kelps like Laminaria ....
Spirullina and chlorella are used as food supplements even by space travellers ....


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