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 point Earth is farthest away from the moon in its orbit is called the apogee. It is when the moon is farthest away from the earth, contrast to perigee, the point when the moon is closest the earth. This is similar to Earth's distance from the sun, the closest being perihelion and the farthest being aphelion.