Home
Class 9
BIOLOGY
A continuous rains during monsoon, a blu...

A continuous 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 for increases crop yield after addition of blue green layer to the fields ?
(c) Name one blue green alga which is a good source of proteins .

Text Solution

Verified by Experts

The correct Answer is:
(a) Blue green alage (Cyanobacteria)
(b) Many blue green known to fix atmopheric nitrogen and improve the fertiilizy of the soil.
C Spirulla
Promotional Banner

Topper's Solved these Questions

  • DIVERSITY IN LIVING ORGANISMS

    PRADEEP|Exercise HIGHER ORDER THINKING SKILLS|9 Videos

  • HEALTH AND DISEASES

    PRADEEP|Exercise Analytical|12 Videos

Similar Questions

Explore conceptually related problems

Blue green are

During monsoon days, a blue green layer was developed on moist soil of village streets making them slippery. On the instruction of science teacher Ghanshyam collected this upper slippery layer of soil from the village street and dried it. Then he added this powder to this crop field. He got very good crop yield without using any fertilizers (i) Which group of organisms is responsible for this blue green layer ? (ii) What is the possible reason for increased crop yield after addition of blue green layer to the fields (iii) Name one blue green alga which do nitrogen fixation (iv) Name one blue green alga which is a good source of protein.

Blue -green algae shows

Blue-green algae are

Blue colour of blue -green algae is due to

Blue green algae is a eukaryote.

Which blue-green algate is used as food?

Cell division in blue green algae similar to that in:-