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Matter In Our Surroundings

Question
CBSEENSC9004653
Wired Faculty App

Why should we wear cotton clothes in summer

Solution

In summer we feel hot. The body temperature should remain constant. In order to keep body cool, the water from the body gets evaporated and gets deposited on the body surface as sweat.
 
Cotton allows better air circulation, which helps in absorbing and removing body moisture caused by sweat. It therefore minimizes fungal breeding by keeping your body dry and cool. Therefore we should wear cotton clothes in summer.

Some More Questions From Matter In Our Surroundings Chapter

What is the physical state of water at

100 °C

For any substance, why does the temperature remain constant during the change of state ?

Suggest a method to liquify atmospheric gases.

Convert the following temperatures to Kelvin scale.

35°C

Give reason for the following observations.

Naphthalene balls disappear with time without leaving any solid.

Give reason for the following observations.

We can get the smell of perfume sitting several metres away.

What is the physical state of water at

a) 25°C
b)00C
c)1000C

What is the physical state of water at
0°C

What is the physical state of water at
100°C

Give two reasons to justify
Water at room temperature is a liquid.

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