What is agCi2?

What are the best ways to save energy? Could global warming happen without the greenhouse effect? When you make a possible explanation for a set of observations you are formulating a? What must be true for science to be able to answer a question? What is a ghost moon? What would your life be like without your lungs? Why do we use blue ink in pens? How deep is 150 meters in a pool? Do all plastic shopping bags carry the same amount of weight? What is more 10 meters or 9999 millimeters? How many kilometres in 60 miles? Does Santa go to the toilet while delivering presents? To clean something out by getting rid of unwanted things? Does metal expand when heated or cooled? How do decomposers help the ecosystem recycle nutrients when a tree dies? How do scientists identify tectonical active regions? How should you seduce a girl for sex? What is two or more forces that act on an object and do not cancel each other? What are the universals concerning language? What is SUNEIFORM?