Why are heavy industry is generally set up near railway stations or navigable rivers

Heavy industries are set up near railway stations because to reduce the transport cost. If they are setup far, transport cost is higher. Hence heavy industries are set up near railway stations

Explanation:

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During 15 and 16 th century Spain as a beautiful country. they traded goods across the Atlantic ocean.

Explanation:

Spanish empire was very big with a strong naval force. It fought against Ottoman empire, France and in America, Spain wanted its colonies to be independent. Due to the rise of the Portuguese and European powers, Spain lost most of its territories.

Roman Catholic churches were famous in Spain which were brought to America too due to the colonization. Together with Portuguese, Spain entered many international trades. Spanish empire began from 16th century after the arrival of Christopher Columbus after which famous Aztec, Inca and Mayan empire can be seen even today.