Question

GIVE REASON -
1. BUILDING HAVE WIDER FOUNDATION
2. KNIVES HAVE SHARP EDGES

Answer 1

1.This is because wider foundations ensure that that the buildings apply lesser pressure on the ground failure to which will result in acute damage in disasters such as earhquakes...It also prevents the building from sinking to the ground.

2.This is because sharper edges can apply more pressure on the thing which is going to be cut down.

Both the answers are based on the simple fact: the lesser the area,the more is the pressure...