Once a person is affected by a dengue virus, the platelets can no longer âactivateâ itself. So whenever there is damage, the platelets cannot form the mesh structure and the blood flows out of the vessel. As blood flows out, so does the platelets. This causes the platelet count to fall drastically. The blood that flows out causes internal. and external bleeding and leads to a haemorrhage.
The people of Egypt used the regular event of the River Nile flood to their advantage. Until 1970, the Nile had flooded every Spring as the mountain snows melted. This flooding of the flat land (floodplains) alongside the river enriched the soils leaving behind rich silt in which crops could be grown.
Interesting Facts about the River Nile: 1  The Nile River is the longest river in the world. 2  The Nile flows into the Mediterranean Sea. 3  The largest source of the Nile is Lake Victoria. 4  The Nile has a length of about 4,160 miles (6,695 kilometres). 5  Its average discharge is 3.1 million litres (680,000 gallons) per second.he River Nile is formed from the Blue Nile, which originates at Lake Tana in Ethiopia, and the White Nile, which originates at Lake Victoria.