Question

1.
Why are viruses considered as being at the 'borderline' between living and
non-living things?
What is fermentation? How is this process useful in the food and beverage
industries?
2.
3.
'In the absence of microorganisms the earth would become a heap of dead
plants and animals.' Justify this statement.
4.
Munna observes that the yield of wheat, growing in his field, has reduced
in the current year. He gets the soil tested and the report confirms the
deficiency of one particular nutrient. Accordingly, he is advised to grow
peas after harvesting wheat.
(i) Name the nutrient found insufficient. Nitrogen
(ii) How do you think growing peas will help in replenishing the soil?
5. Why does it take less time to prepare curd in summers as compared to
preparing it in winters?​

Answer 1

Answer:

1.viruses are non living outside the host.when they enter host,they start multiplying..hence they are between border of living and non living..they are another type of microbes..