Question

QIV) Short answer Questions: Q1) Where do microorganisms live? Q2) State some domestic uses of microorganisms. Q3) Yeast is used in Baking industry. Give scientific reasons. Q4) How does a vaccine work? Q5) While Sana visited her local market, she took some street food to fulfill her hunger. It was a rainy day. As soon as she came home, she felt severe stomach ache and fell ill. What do you think, why did she fell ill? Q6) If we leave some unused kneaded flour in the open for a day or two, what will happen to the flour and why? Q7) Antibiotics should be taken only on the advice of a qualified doctor. Give scientific reasons. Q8) Microorganisms are useful decomposers. Give scientific reasons. Q9) Anna who had cold, sneezed in the class without covering her mouth. Is this action of Anna right? Give reasons to your answer. Q10) Who are carriers? Explain giving one example. Q11) Ramu lives in a small settlement. There is a garage near this settlement in which many old discarded tiers and other scrap material is lying around. During the rainy season water accumulates in these tyres. During this season there are many Malaria patients in this settlement. Can you tell the possible reasons for this and suggest some ways to avoid it? Q12) Ali was careless and left his wet shoes out during the rainy season. Very soon he saw something growing on his shoes. a. What was it that was forming on his damp shoes? b. What was the causative microorganism? c. What advice can you give to Ali?

Answer 1

Answer:

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Answer 2

Answer:

=> Microbes are tiny living things that are found all around us and are too small to be seen by the naked eye. They live in water, soil, and in the air. The human body is home to millions of these microbes too, also called microorganisms.