What is a quadvant?

Why does science tend to be self correcting? Is germicidal soap the same as Antibacterial Soap? What is 12 nm in miles? Why should you wear dust coats in electric labs? Is 100 miles less than 100 kilometers? Is pencil is a biodegradable waste or not? Inertia can be categorized as? Where do you get extra maths questions for class 7? How many kilogram is equal to 50lb? What is the purpose of a page rank checker? What is dominant and recessive? How many liters can a garbage can 13 inches by 20 inches hold? Why is a control group needed in any experiment? What is the scientific notation for .00072? If an atom has 17 protons 13 neutrons and 19 electrons what is the atoms electrical charge? What may cause a future theory to be revised or discarded? Upwelling off the California coast is caused? What goes under the over the water but never touches the water? In the centre of the atom there are two types of ub atomic particles these particles are the? Why would you always use a rubber bulb when pipetting?