The amount of a gas like carbon dioxide that can be dissolved in water is described by Henry's Law. Water is chilled, optimally to just above freezing, in order to permit the maximum amount of carbon dioxide to dissolve in it. Higher gas pressure and lower temperature cause more gas to dissolve in the liquid.
Investment bankers are also responsible for buying and selling stocks and securities on behalf of their clients. To become an investment banker, you must have a college degree, preferably in a related discipline. You also typically need professional certifications, as well as government licenses to buy and sell investment products for your clients.
Viable candidates will have finance or business degrees, and maybe an advanced Masters of Business Administration (MBA) degrees for plum investment banking analyst posts, although financial services firms do recruit finance and business undergraduates from high-end schools for entry-level analyst positions.