What determines the difference between paired and unpaired terraces?
Answer and explanation
Correct answer: By the symmetric or asymmetric nature of river incision
River terraces are remnants of former valley floors left above the present channel after renewed incision. If uplift, discharge change, or incision affects both valley sides at approximately the same level, matching steps occur and the terraces are paired. Unequal erosion or lateral migration leaves a terrace on only one side, producing an unpaired terrace. Hence option C is correct.
Frequently asked questions
What is the correct answer to this question?
By the symmetric or asymmetric nature of river incision
Why is this the correct answer?
River terraces are remnants of former valley floors left above the present channel after renewed incision. If uplift, discharge change, or incision affects both valley sides at approximately the same level, matching steps occur and the terraces are paired. Unequal erosion or lateral migration leaves a terrace on only one side, producing an unpaired terrace. Hence option C is correct.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Trial Balance and Rectification of Errors.
