Is you butt really a hole?

The red sea was formed along what boundary? What are the diffrent forms of arthritis? What is the safety rating average of Saturn cars? Why are such a few meteorites found on earth? What is the meaning of visually stimulating? How often does Australia have hurricanes? What is the most available form of carbon for life? What structures are found in the knee joint that help absorb shock in the joint? What rate will an ice cube melt in plastic wrap versus aluminum foil? Why did Medeleev arrange he order of elemts of mass? What do metals and non metals have in common? Substance that contains a starch-splitting enzyme? Is quantum physics and metaphysics the same thing? Will a 800 watt generator have enough power to operate a 90 amp welder? How far is equator to Bogota? What happens to the brain when your ambidextrous? What system transmits interstitial fluid? What are the suitable materials for co2 reflectors and windows? What primary and secondary waves slow down when they hit the plasticlike layer of the upper mantie called the? Is carvacrol water-soluble?