Class 8 Science: Microorganisms Friend and Foe Worksheet
Answer the questions and tap Submit to see your score. Your progress is auto-saved on this device.
Jump to question
Q1 · MCQ · 1 mark
Which of the following is an example of a microorganism?
Q2 · MCQ · 1 mark
Microorganisms that cause diseases are called:
Q3 · MCQ · 1 mark
Which microorganism is used in the production of bread?
Q4 · MCQ · 1 mark
The process of converting sugar into alcohol by microorganisms is called:
Q5 · MCQ · 1 mark
Which of these is NOT a method of food preservation?
Q6 · FILL · 1 mark
Diseases like common cold and measles are caused by ______.
Q7 · FILL · 1 mark
The bacteria that promote the formation of curd is called ______.
Q8 · FILL · 1 mark
______ is a common preservative used in pickles and jams.
Q9 · SHORT · 2 marks
Name two beneficial uses of microorganisms.
Q10 · SHORT · 2 marks
What is vaccination?