The answer is: Market
In the market model, each indviduals have the chance to predict the type of product that the majority of people need / desire. (which they commonly called as 'market demand').
After knowing the market demand, individuals who want to obtain an economic profit need to develop the products in order to answer the market demand. (products that given to the consumers by the sellers is what usually called as market supply)
Latitude
Latitude implies the geographic coordinates that determine the distance of a point, north-south of the equator.
It is known as parallels
The length of the lines are different
It classifies heat zones
There are 180 latitude lines
Longitude
Longitude alludes to the geographic coordinate, which identifies the distance of a point, east-west of the Prime Meridian.
It is known as meridians
The length of the lines are the same
It classifies time zones
There are 360 longitude lines
Hope this helps! :)
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