What is a polar bill?

Which is the highest and the lowest taxonomic category? Hurricane formation from weakest to strongest? What stimulates luteinizing hormone? Why is tourism so popular in Central America and the Caribbean? What are the surface conditions on Pluto? Clive's paper was returned with the answer barium II carbonate marked wrong for the formula BaCO and Atilde and 139 and Atilde and 132. Why was his answer wrong? How does the chain length of Hydrocarbons change their properties? What is a protective ditch? Which famous Japanese scientist did earthquake research? Can half-life be increased or decreased? What are 3 characteristics of a continental plate? What is the membrane called that surrounds a caspid? What is the Strongest Antihistamine? How do cells form spheroids? Molecular formula of glucose? What information in balanced chemical equation shows how many moles a reactant are involved in the reaction? How old is a Stevens Model 94 20 gauge with a plastic stock and the markings 94B and 17 in a circle on the right side? What cause the membrane potential of a neuron? What physical change would hammering wood together to build a playhouse be? What is the coiled portion of the inner ear that contains the organ of the hearing?