1
By increasing the kinetic energy of particles, their........increases
3
Heat is transferred through solids by.........
4
Heat is transferred by convection through..........
5
The freezer of the fridge is found at the top of the fridge ,because the cold air.........
6
If you sit down under a lighted electric lamp,heat is transferred to you by.....
7
Which of the following devices doesn't pollute the environment?
8
Which of the following devices pollutes environment?
9
At home, when the gas stove is working ,there is a change from..........
