Why is the lower part of a mushroom rock narrower?
Answer and explanation
Correct answer: Sand-laden wind abrades more near the ground
The governing process is wind abrasion in an arid environment. Wind-driven sand grains are concentrated close to the ground, so they strike and wear away the lower part of an exposed rock more intensely than the upper part. Continued undercutting produces a narrow base and a broader top, giving the feature its mushroom-like shape. Thus D is correct; snowfall, river deposition, and groundwater dissolution do not explain this typical form.
Frequently asked questions
What is the correct answer to this question?
Sand-laden wind abrades more near the ground
Why is this the correct answer?
The governing process is wind abrasion in an arid environment. Wind-driven sand grains are concentrated close to the ground, so they strike and wear away the lower part of an exposed rock more intensely than the upper part. Continued undercutting produces a narrow base and a broader top, giving the feature its mushroom-like shape. Thus D is correct; snowfall, river deposition, and groundwater dissolution do not explain this typical form.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Financial Statements – II. Topic: Common Adjustments.
