Question

1. Nilima's mother runs a ladies tailor. Today she is in great trouble. She found
that she could not cut the clothes with her old scissors as it becomes blunt.
Nilima was surprised to see this and had no logic with her. Can you explain
Nilima why do this happen with a blunt scissors?

2. Name the different sources of energy used in your surroundings and classify
them under renewable and non-renewable categories.​

Answer 1

Answer:

1) it happened because the sharpness wore out. After cutting clothes it will naturally become rusty if proper care is not take. eg oiling

Explanation:

renewable- sun,wind, water

non renewable -petrol wood coal diesel

hope.this helps

Answer 2

Answer:

1) It happened so because old scissors became rusty as it was in contact to moisture to avoid this oiling or any other process was must required.

2) The different sources of energy used in our surroundings are as follow:-

a) Solar energy - Renewable

b) Hydro energy - Renewable

c) Wind energy - Renewable

d) Nuclear energy - Non renewable

e) Natural gas - Non renewable

f) Coal - Non renewable

Explanation:

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