A waterfall generally forms under which condition?
Answer and explanation
Correct answer: When hard and soft rocks differ in the river bed
The correct answer is B. A waterfall commonly develops where resistant hard rock and less resistant soft rock occur together in the river channel. The soft rock is worn away more rapidly, while the hard layer remains as a step or ledge; continued erosion increases the drop. A plain, wind deposition, and retreating sea waves do not create this river-bed contrast.
Frequently asked questions
What is the correct answer to this question?
When hard and soft rocks differ in the river bed
Why is this the correct answer?
The correct answer is B. A waterfall commonly develops where resistant hard rock and less resistant soft rock occur together in the river channel. The soft rock is worn away more rapidly, while the hard layer remains as a step or ledge; continued erosion increases the drop. A plain, wind deposition, and retreating sea waves do not create this river-bed contrast.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Computerized Accounting & Database System. Topic: Accounting Software.
