Why can a ventifact develop several flat facets?
Answer and explanation
Correct answer: Changing wind directions abrade different rock surfaces with sand
A ventifact is a stone shaped by wind-driven sand abrasion. The governing idea is that wind direction and the exposed face of the rock determine where impact is concentrated. If winds vary seasonally or turbulently, different faces are successively polished, chipped, or bevelled, producing several flat facets. Therefore option A is correct. Floodwater, glacial pressure, and tidal calcite deposition do not explain this characteristic form.
Frequently asked questions
What is the correct answer to this question?
Changing wind directions abrade different rock surfaces with sand
Why is this the correct answer?
A ventifact is a stone shaped by wind-driven sand abrasion. The governing idea is that wind direction and the exposed face of the rock determine where impact is concentrated. If winds vary seasonally or turbulently, different faces are successively polished, chipped, or bevelled, producing several flat facets. Therefore option A is correct. Floodwater, glacial pressure, and tidal calcite deposition do not explain this characteristic form.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Computerized Accounting & Database System. Topic: Accounting Software.
