TASK DEFINITION: You are given a sentence and your task is to generate another sentence that supports the given input.
PROBLEM: This causes gases to become liquids and liquids to become solids as the temperature decreases.

SOLUTION: Gases and liquids become solids at low temperatures.

PROBLEM: A neutral atom has an equal number of protons and electrons so that the positive and negative charges exactly balance.

SOLUTION: Because atoms have equal numbers of positive protons and negative electrons, they possess a neutral charge.

PROBLEM: All organic molecules have a carbon skeleton that is composed of rings or chains of carbons.

SOLUTION:
The element carbon is present in all organic molecules.