How is tetanus transmitted?

Important Questions on Microorganisms: Friends or Foes

EASY

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 6

How is typhoid transmitted?

MEDIUM

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 7

What are antibiotics? How are they produced? Give two examples of these.

MEDIUM

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 1

'Microorganisms are very useful in manufacturing different food items'. Explain the given statement.

EASY

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 2

Give reasons: Yeast is added to the batter used to make 'dosas'.

EASY

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 2

Give reason: It is important to brush one's teeth before going to bed.

EASY

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 2

Give reasons: Reducing the quantity of salt in pickle can cause it to go bad soon.

MEDIUM

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 2

Give reason: Foods from puffed or enlarged cans should not be consumed.

MEDIUM

8th CBSE

IMPORTANT

The Living World A book of Science and Technology>Chapter 2 - Microorganisms: Friends or Foes>Something To Know>Q 2

Give reason: When using frozen food items one should take out only the required quantities; thawed food should never be refrozen.