A: Blue-green Algae fixes atmospheric nitrogen, in soils
R: In India Blue-green Algae is rare
Both A and R are correct and R explains A
Incorrect AnswerBoth A and R are correct but R does not explain A
Incorrect AnswerA is correct but R is false.
Correct AnswerR is correct but A is false.
Incorrect AnswerExplanation:
A is correct but R is false.
Blue Green algae are a type of photosynthetic bacteria consisting either of single cells or colonies which is also known as the Cyanobacteria. Cyanobacteria contain only one type of chlorophyll, Chlorophyll a green pigment. In addition, they also contain pigments such as carotenoids, phycobilin. These bacteria grow naturally in marine and freshwater systems. They thrive in dams, rivers, reservoirs, lakes and even in hot springs. These bacteria normally look green and sometimes turns blue when scum are dying.
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By: santosh