What happens when sulphuric acid is exposed to the atmosphere?

How do you get rid off moldy smells? Why do you need coal? How quick can chloroform knockout? What is the name of the compound H2SO4? Is an alloy of copper zinc and tin a sollution? How do you get permanent marker off sandstone? Is XeF2O polar? How often is the color black called for jams testing? Is a pb an j healthy? Why is it important that chlorine and fluoride are added at the end rather than at the beginning of the water treatment process? What is in napisan? What are other names for aluminum? What is the connection between Alkenes and fruit ripening? Where is cherynobyl located? What is the charge if most common ion for Cs? How much oxygen does an E cylinder hold? What the function of a G clamps? A reddish lustrous ductile malleable metal element? Who invented insulin for the first time? Is sulphur dioxide an oxide that has a pungent choking smell?

What happens when sulphuric acid is exposed to the atmosphere?