1.
In SI unit of temperature is

2.
A very good conductors of heat contains

3.
Materials trapped air by fur, feathers, wool and sawdust are heat

4.
A solar panel is kept black surface so that it absorbs more

5.
Water freezes at

6.
Railway tracks have gaps between them to deal with expansion in

7.
Heat loss may help the matter to

8.
A joint which is made between adjoining rails to expand without bending is called

9.
In melting of ice cube the heat gain

10.
Mercury is

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