The scale on a map represents the actual distance of any geographical or man made entity with respect to the map units. For example a scale of 1:10000 states that 1 unit of any mode of measurement on map is equal to 10,000 mode of measurement on ground. This mode of measurement could be cm, km , feet etc. Thus 1 cm of map may represent 1000 m, 10000 km , 200000 feet etc.
The scale is used to represent the relative distance in both horizontal and vertical directions.
<em><u>The products of the combustion of hydrocarbons are carbon dioxide and water. Many hydrocarbons are used as fuel because their combustion releases very large amounts of heat energy.</u></em>
