Question

Give scientific reasons for each of the following statements:
5. Lightning strikes more frequent in hilly areas.
6. Fires are produced by burning oil not extinguished by pouring water.

Answer 1

1) ​Lightning is a very heavy flow of charge between clouds or between clouds and earth.

In hilly areas clouds are comparatively closer to the ground than in the plains. Therefore lightning strikes are more frequent in hilly areas.

2) Oil is lighter than water. Therefore, when water is poured on a large oil fire, then oil being lighter as well as imiscible with water will form a separate layer above the surface of water and continue to burn. Thus, the fire will not be extinguished.