Question

Water conveying pipes made of _________
Electric wire contains___________
Ornaments are made of_____________
The air we breathe consists of ___________
Coal contains __________
The gas that can be used to fill party balloons is________
The gas that is used to make flash light is_________
The gas present in tungsten bulb is _______
The gas present in the universe is ________
The gas used in high intensity lamp of______

Answer 1

PVC for the first question