Exercises
Jharkhand Board Science Solutions for Exercises
Simple step-by-step solutions to Exercises questions of Microorganisms: Friend and Foe from SCIENCE : CLASS VIII. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from Exercises with Hints & Solutions
E.coli can be seen with the help of a _____.(Microscope/ magnifying glass)
Blue-green algae fix _____ directly from the air and enhance the fertility of the soil. (Nitrogen/ Carbon)
Alcohol is produced with the help of _____ (yeast/algae). (Write its common name)
Cholera is caused by _____. (virus/fungi/bacteria/protozoa)
Name the microorganisms which can fix atmospheric nitrogen in the soil.
Write 10 lines on the usefulness of microorganisms in our lives.
Write a short paragraph on the harmful effects of microorganisms.
What are antibiotics? What precautions must be taken while taking antibiotics?
