Question

2. (a) Wearing more layers of clothing during winter keeps us warmer than wearing just one

thick piece of clothing. Give reason.



(b) In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a

hot object. What is the reason for this rise in the level of mercury?

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Answer 1

Answer:

Explanation:

Air acts as insulator of heat. This layer prevents our body heat to escape in the surroundings. More layers of thin clothes will allow more air to get trapped and as a result, we will not feel cold. So wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing.