compounds and products. 1  corn oil (in corn oil) 2  cottonseed oil (in cottonseed) 3  ethylene (in oxidation-reduction reaction: Examples of oxidation-reduction reactions) 4  fat (in fat: Uses of fats) (in fat and oil processing: Hydrogenation) 5  hydrocarbons (in hydrocarbon: Chemical properties)
Setting a Standard for World Time. Greenwich Mean Time or GMT is the clock time at the Royal Observatory in Greenwich, London. It is the same all year round and is not affected by Summer Time or Daylight Saving Time. When the sun is at its highest point exactly above the Prime Meridian, it is 1200 noon at Greenwich. View current Sun position and Midnight/Midday on Earth.
As has been stated mean in the context of GMT is a type of average. There are three main types of average: mean, median and mode. The mean average is where you add up all the number in a list of numbers and then divide the total buy the number of numbers. E.g. the mean of 4,5,6,7,8,9,10 is (4 + 5 + 6 + 7 + 8 + 9 + 10) / 7.