How many hurricans were there in 2012?

Does liters measure mass or volume? What is the fragile and tiny cell mass that is composed of cells from the duplicated divided and differentiated zygote? What are the medical centers in Riyadh? Chemical composition of minerals? 1979 ford f100 fuel tank theres a green wire and a black wire where does the black wire go the green wire is hooked up but not the black one? Who was involved in the operations of the north west company? How was dental amalgam discovered? What are the different harmful gasses that depletes the ozone layer? In order to gain illegitimite? What are bacterial structures involved in the passage of DNA into or out of the cell? What comes out of a cinder cone volcano? Does thiol contribute a negative charge? Why does north magnet and north magnet don't stick together? Is 18 carat gold a mixture or a pure substance? What is the scientific name for proteobacteria? What was the Aztecs main staple? What does it mean by consist? It makes urine and stores glycogen? Is organic vitamin c more effective than artificial vitamin c? If the reactants of a reaction are 2AgClO3 and Na2CO3 could be a product?