Question

1) Which of the following is a surface phenomenon?

*Evaporation
*Boiling
*Both of these
*None of the above

2) Which state has the highest compressibility?

*Solid
*Liquid
*Gas
*Sol

3) Kabir came back home after playing football. He felt hot and sweaty. He stood under the fan. He noticed he started feeling cool and dry. What explains his observation?

* When Sweat Evaporates,warm air moves away from the body.
* When Sweat Evaporates, it gains heat energy from the surroundings.
* When Sweat Evaporates, it absorbs energy from body making it cooler.
* When Sweat Evaporates, cooler air from the surroundings reaches the body.

Answer 1

Answer:

1) Evaporation

2) Gas

Hope it helps!

Answer 2

Answer:

Q1• Evaporation

Q2• Gas

Q3• When sweat evaporates,cooler air from the surrounding reaches the body