1. During daytime, a sea breeze blows because:

2. Radiation differs from conduction and convection because:

3. Shopkeepers cover ice blocks with jute sacks because:

4. Why do we wear light-coloured clothes in summer?

5. The process by which heat is transferred through direct contact of molecules in solids is called:

6. The process by which hot air or liquid rises and colder air or liquid replaces it is called:

7. The process by which heat travels from the Sun to the Earth is called:

8. Which of the following is an insulator of heat?

9. What happens to the air in a hot balloon when heated?

10. Why are metal kettle handles covered with cane or plastic?