A common demonstration involves charging a rubber balloon, which is an insulator, by rubbing it on your hair and then touching the balloon to a ceiling or wall, which is also an insulator. Because of the electrical attraction between the charged balloon and the neutral wall, the balloon sticks to the wall. Imagine now that we have two infinitely large, flat sheets of insulating material. One is charged, and the other is neutral. If these sheets are brought into contact, does an attractive force exist between them as there was for the balloon and the wall?

here there is also an electric attraction force

Explanation:

In the insulating bodies the charges are not mobile, so when one of the body is charged periodically or gained some electrical charges.

When the body is neutral the net number of electric charges is zero. When the loaded body touches it, it repels the charges of the same sign whereby the induced load is of a different sign and the two adhered sheets are attracted.

With this explanation it is equivalent to that of the ball and the wall, so here there is also an electric attraction force

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide