131.
The wall of a dam is broader at the base

132.
It is easy to burst a gas-filled balloon with a needle than with a nail. It is because

134.
The spokes used in the wheel of a bicycle increase its

135.
It is difficult to cook rice

136.
Energy per unit volume is dimensionally equal to

137.
To open a door easily, the handle should be fixed

138.
Water boils at a lower temperature on the hills because

139.
The force exerted by a magnet is an example of ________

140.
A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .