the Nile River is one of the biggest river in the world. it is the only river that flows north.4132 miles in length. Kenya, Eritrea, Congo, Burundi, Uganda, Tanzania, Rwanda, Egypt, Sudan and Ethiopia. are all the countries the Nile passes threw.
is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded by Asia—including India after which the ocean is named—on the north, on the west by Africa, on the east by Australasia, and on the south by the southern ocean (or, depending on definition, by Antartica).
The Red Sea has a surface area of roughly 438,000 km² (169,100 mi).It is about 2250 km (1398 mi) long and, at its widest point, 355 km (220.6 mi) wide.It has a maximum depth of 2211 m (7254 ft) in the central median trench,and an average depth of 490 m (1,608 ft).
the Tigris is 1,850 km long, rising in the Taurus mountains of eastern Turkey about 25 km southeast of the city of Elazig and about 30 km from the headwaters of the Euphrates. The river then flows for 400 km through Turkish territory before becoming the border between Syria and Turkey. This stretch of 44 km is the only part of the river that is located in Syria.
From south-to-north, the delta is approximately 160 kilometers (99 mi) in length. From west-to-east, it covers some 240 kilometers (150 mi) of coastline. The delta is sometimes divided into sections, with the Nile dividing into two main distributive, the Dammite and the Rostta, flowing into the Mediterranean at port cities with the same name. In the past, the delta had several distributes, but these have been lost due to flood control, silting and changing relief. One such defunct dis-tributary is Wadi Tummalt.