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Question

An alga which can be possibly used in space flight (Space Alga) is

A
Nostoc
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B
Chlorella
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C
Ulothrix
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D
Spirogyra
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Solution

The correct option is B Chlorella
Chlorella is used in space as it is known to be a good food source for human consumption and energy. It contains high levels of iron, vitamins and amino acids and can grow and multiply in the presence of sunlight, carbon dioxide and a small amount of minerals and water. The primary purpose of chlorella is to provide oxygen, consume the carbon dioxide exhaled by humans and convert the nitrogen-filled wastes.

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