Waterways often provided food, directly with fish or indirectly attracting wildlife, or providing irrigation for crops. Waterways could also provide a means of transportation using boats, allowing trade and exploration, contact with other groups of people and the exchange of ideas. Of course...
When you get a paycheck, Gross is your total pay before any deductions. Net is your pay after deductions, your take-home pay. In business, Gross is the total amount of your sales, Net is what
you made after all expenses, your profit.