Question

With help of labelled diagram explain an experiment to prove that air is a bad conductor of heat. .

Answer 1

Explanation:

Simplify 7^-3× 9^-3

PLEASE DONT TYPE WRONG ANSWER

Answer 2

Answer:

Take a hard glass test-tube and place in it small amount of wax. ... Heat the test-tube near the mouth. In few miniutes, the cork blows out, but wax does not melt. Thus, experiment proves that air is a bad conductor of heat.