The theory of mercantilism motivated overseas exploration as it posited that a country's power depended mainly on its wealth. Consequently, various nations sought to increase their wealth and power by establishing colonies where they could extract resources such as minerals which determined the wealth of a nation
12% of the world is malnourished or starving.
The answer is Canal. Canals are human-made channels for water movement, or to administration water transport vehicles. In the vernacular, both are alluded to as 'trenches', and as a rule, the built works will have a progression of dams and bolts that make territories of the low-speed current stream. These territories are alluded to as 'slack water levels', frequently just called 'levels'.