Branniest to the best answer
A student made the table shown to list some contact and non-contact forces.

Examples of Forces
Contact Forces Non-Contact Forces
The force exerted by a stretched spring The force applied by Earth and sun on each other
The force exerted by a positive charge on a negative charge The force exerted on hair by a balloon rubbed on hair

Which statement best explains why the table is incorrect?
Spring force is a force acting at a distance.
Electrical force is a force acting at a distance.
Gravitational force can act between planets and sun only when they are in contact.
Electrostatic force is exerted by a charged balloon on hair when they are in contact.