Question

fill in the blanks
1) A flame is produced when gases combine with ____________ releasing a lot of energy
2) Small gaps are left in a railway track to allow for ___________ in summer
3) Bimetallic strips __________ on heating
4) Heat transfer in fluids almost entirely by ___________
5) Transfer of heat through a vacuum occurs by ___________
6) The most important mode of transfer of heat in solid is ________
7) Adding salt __________ the melting point of ice​

Answer 1

Answer:

1.oxygen

2.the rails expand in summer

3.brass expands more than

4.convection

5.radiation

6.conduction

7.low