Question

1) Omana saw many kinds of vehicles at the level-crossing.
Which of them run on diesel or petrol?

2) Why was there so much smoke and noise from the vehicles
at the level crossing?​

Answer 1

Answer:

Answer in one sentence

1_ because it contains high resistance and high melting point.

2_argon

3 because switch connect and disconnect the circuit when necessary.

4 because copper is a good conductor of electric current

5 because it prevent from shock of electric current

Answer 2

Answer:

1 both

Explanation:

2 problem of traffic