Is there any cohesion in air?
No; because the particles of air are always trying to separate from each other.
Is there any cohesion in liquids?
Yes; there is some cohesion in liquids, but it is only strong enough to hold them together in drops.
Does the cohesion in liquids vary?
Yes; the cohesion in mercury is stronger than it is in water; therefore, a drop of mercury is larger than a drop of water.
How is it in chloroform?
The cohesion in chloroform is weaker than it is in water; therefore, a drop of chloroform is smaller than a drop of water.
How is shot made?
When lead is melted and poured through a sieve at the top of a high tower, the attraction of cohesion forms it into round drops or globules; these cool, while falling, thus forming the grains of shot.