Download App

STD 12 - 8. microbes in human welfare — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 8. microbes in human welfare1 Mark
MCQ
Yield of paddy field can be increased by application of
  • A
    Iron bacteria
  • ✓
    Nostoc/Anabaena
  • C
    Archaebacteria
  • D
    Symbiotic bacteria
✓

Answer

Correct option: B.
Nostoc/Anabaena
b
(b)They are the free living nitrogen fixing cyanobacteria and increase nitrogen content of moist soil and water bodies, which can be used in increasing paddy yield.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 8. microbes in human welfare→STD 12 - 8. microbes in human welfare — all question types→Biology STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Identify the likely organisms $(1), (2), (3)$ and $(4)$ in the food web shown below.
→
Reverse transcriptase:
→
A character which is expressed in a hybrid is called:
→
All of the following are part of an operon except
→
Members of a population
→
Which of the following has revolutionized the discipline of biotechnology $..........:$
→
Which ones are simple sequence repeats $\text{(SSRs)}:$
→
Predator helps to create checks on
→
Rate of production of organic matter by producers per unit time and area is
→
Which of the following virus has ds-$DNA$ as the genetic material and is transmitted mainly by sexual contact?
→