Question

At the mouth of which of the following rivers is the 'bird's foot' type delta formed?

1. Huang Ho
2. Nile
3. Danube
4. Mississippi

Answer 1

Correct Answer - Option 4 : Mississippi

The correct answer is Mississippi.

• Mississippi river forms a bird-foot delta.
• It flows in the USA. It emerges from Lake Itasca in Minnesota.
• It flows into the Gulf of Mexico.
• It is the world's fourth longest river system including Missouri and Jefferson rivers.

• Delta is a depositional feature of a river.
• It is an important part of the lower course of the river.
• Types of delta-
  • Arcuate Delta- It is a fan-shaped delta-like Ganga-Brahmaputra delta.
  • Bird's foot delta - Its shape is like a bird's foot and hence the name. They are formed due to the deposition of finer materials by river water. Eg., Mississippi Delta
  • Cuspate delta - When sediments are deposited in a straight line.
• Other features of the river-
  • Upper course
    • Gorges
    • Waterfalls
    • Rapids
  • Middle course
    • Meanders
    • Oxbow lakes
    • Alluvial fans
  • Lower course
    • Delta
    • Flood plain