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.
1 Nile river is 4184 miles long. 2  The Nile Riverâs average discharge is about 300 million cubic metres per day. 3  Crocodiles are very common along the banks of the Nile River.4  Fishing Eagles are a common bird along the Nile. 5  The Nile stretches north for approximately 4,000 miles from East Africa to the Mediterranean. The length of the river is approximately 6695 km and the river has two tributaries. 2  Only 22% of the river passes through Egypt, the other countries through which Nile passes are Sudan, Burundi, Ethiopia, Zaire, Kenya, Uganda, Rwanda and Tanzania.