Question : A continous rains during monsoon, a blue green layer is developed on moist soil of village streets making them slippery. (a) Which group of organism is responsible for this blue green layer ? (b) What is the possible reasons forincreases crop yiedl after addtion of blue green layer to the fields ? (c) Name one blue green alga which is a good source of protien .

Question : A continous rains during monsoon, a blue green layer is dev

1.	Question : A continous rains during monsoon, a blue green layer is developed on moist soil of village streets making them slippery. (a) Which group of organism is responsible for this blue green layer ? (b) What is the possible reasons forincreases crop yiedl after addtion of blue green layer to the fields ? (c) Name one blue green alga which is a good source of protien .
Answer» Answer :(a) BLUE green alage (Cyanobacteria) (B) MANY blue green known to fix atmopheric nitrogen and IMPROVE the fertiilizy of the soil. C Spirulla