Methane as a greenhouse gas[edit] Methane in the Earth's atmosphere is a strong greenhouse gas with a global warming potential of 29 over a 100-year period. This means that a methane emission will have 29 times the impact on temperature of a carbon dioxide emission of the same mass over the following 100 years.
Laptop computers. On laptop computers, the Fn key is almost always located on the bottom left-hand side of the keyboard, next to the Ctrl key. Chromebooks. Not all Chromebooks have an Fn key. For those that do have an Fn key, it is often found near the spacebar.
, those keys will act as keypad keys when you press the FN button. Keypad keys are 7, 8, 9, u, i, o, j, k, l and m buttons. If on your laptop you can't find keys with tiny numbers-try them. From user: For those of you that don't have Key Pad, try [FN] + [F11] it may open a calculator-like keypad.