Class 6 Science MCQs - Chapter 11
Micro Organisms Quiz Questions & Answers PDF Download - 7
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Micro Organisms Exam Questions and Answers PDF Download: Test 7
Teeth are eroded by conversion of sugar food into acid by
- bacteria
- virus
- both a and b
- fungus
Cholera, whooping cough, tuberculosis, typhoid fever are caused by
- virus
- bacteria
- contaminated water
- fungus
By invading in other living organisms the cells of microorganism multiply rapidly to reproduce like
- virus
- bacteria
- fungi
- algae
Pasteurization helps us to kill
- micro-organisms
- fungi
- virus
- bacteria
The bubbles are trapped in dough of bread is of
- oxygen
- water vapors
- hydrogen
- carbon dioxide
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