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<u><em>A waterfall is an erosional landform, which occurs where there is a layer of hard rock on top of a layer of softer rock. Erosional processes such as hydraulic action and abrasion occur as the river flows downstream, however differential erosion takes place as the softer rock erodes faster.</em></u>
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- Generated electricity is used by millions of people.
- Floods are controlled, reducing damage to farmland.
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The dam likewise improved route over the Nile, profiting the travel industry and fishing businesses. Water from the dam is utilized to take care of 12 force turbines, which gives half of Egypt's capacity requests. The repository likewise assists gracefully with watering during dry spells.
The humanist scholarship encouraged oceanic exploration as due to the large-scale printing of books, people started gaining knowledge and setting out on oceanic expeditions in order to find new trade routes and satisfy their spirit of adventure.
The factors which motivated the Portuguese, particularly Prince Henry the Navigator, to explore west Africa were to extract and export gold and other valuables from which Portugal could benefit. The other reason was that Prince Henry was fascinated about west Africa as the Portuguese had little knowledge about it.
With the development of the printing press, books were available more easily and were even cheaper. This help in the widespread of new ideas and thoughts in society. People built sturdier ships with this knowledge and set out to explore new oceanic routes to procure spices and other goods at cheaper prices from different parts of the world.
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A ruler-like symbol used to measure distance on a map is a scale. It shows the ratio of the distance on the map to the actual distance.
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