1 Wear safety goggles to protect your eyes. 2  Never use a plunger if a chemical cleaner is present in the drain; you risk splashing the chemical on yourself.  Never remove a trap with chemicals present; you risk burns to your skin. Call a professional but make certain you inform them of what chemical you used.
Originally Answered: Why is the Moon drifting away by 1 cm each year? Because of tidal forces between moon and Earth. As Earth and moon pull each other, bulges are created on the surface.
The holes in this theory range from suggestions that the moon would have eventually broken free from Earth's gravity because Earth's gravity would have been massively altered by catching the moon. Also, chemical components of both the Earth and the moon suggest they formed at around the same time.