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.
Evidence for this theory comes from samples of moon dust, showing that the moon is made of fairly similar rocks to those found in the upper layers of the Earth's mantle and crust. The moon formation crash knocked Earth sideways, changing its angle of tilt to the sun from 0 degrees to 23.5 degrees. As a result, the Earth started to have seasons: winter for the hemisphere tilted away from the sun, and summer for the hemisphere tilted towards the sun.