Why is abrasion not capable of creating things like balanced rock atop narrow pedestals?
A. It is not strong enough.
B. This type of wind erosion would not cause that kind of pedestal.
C. It does, in fact, cause these types of features.
D. It seldom happens more than a meter above the surface.
my answer is b.
Well, not at all sure about that. Of course some are dropped by glaciers but others are abraded away underneath.
https://en.wikipedia.org/wiki/Balancing_rock
b is not correct.
Correct! The reason why abrasion is not capable of creating things like balanced rock atop narrow pedestals is because this type of wind erosion would not cause that kind of pedestal.
To determine the correct answer, we need to understand the process of abrasion and its effects on rock formations.
Abrasion is a process in which particles, such as sand and pebbles, are carried by wind or water and used to wear away or erode surfaces. It usually occurs in areas with strong winds or flowing water. However, abrasion alone is not capable of creating balanced rocks atop narrow pedestals. Balanced rocks, also known as perched rocks, are formed when softer rock erodes (via wind, water, or other forces) around a harder rock, leaving the harder rock balanced on a narrower base.
Let's review the answer choices:
A. "It is not strong enough." While abrasion is a powerful force, it is not the primary factor responsible for creating balanced rocks atop narrow pedestals. Therefore, answer choice A is incorrect.
B. "This type of wind erosion would not cause that kind of pedestal." This answer suggests that wind erosion, including abrasion, is not capable of creating pedestals for balanced rocks. Since this is true, answer choice B is correct.
C. "It does, in fact, cause these types of features." This answer contradicts the explanation above. While abrasion may contribute to the overall erosion process, it alone cannot create the specific features of a balanced rock atop a narrow pedestal. Hence, answer choice C is incorrect.
D. "It seldom happens more than a meter above the surface." This answer provides information unrelated to the creation of balanced rocks atop narrow pedestals. Therefore, answer choice D is incorrect.
Therefore, the correct answer to the question is B: "This type of wind erosion would not cause that kind of pedestal."