Chatter marks on a rock floor are related to which process?
Answer and explanation
Correct answer: Abrasion and small fractures caused by hard particles beneath a glacier
Chatter marks are small crescent-shaped fractures or gouges produced when hard rock fragments embedded in moving basal ice press and scrape against bedrock. Their repeated impact records glacial abrasion and sliding at the glacier bed. Thus option B is correct. A spit is a coastal deposit, loess is wind-blown sediment, and sinkhole filling is a karst or groundwater process, so none of those explains chatter marks.
Frequently asked questions
What is the correct answer to this question?
Abrasion and small fractures caused by hard particles beneath a glacier
Why is this the correct answer?
Chatter marks are small crescent-shaped fractures or gouges produced when hard rock fragments embedded in moving basal ice press and scrape against bedrock. Their repeated impact records glacial abrasion and sliding at the glacier bed. Thus option B is correct. A spit is a coastal deposit, loess is wind-blown sediment, and sinkhole filling is a karst or groundwater process, so none of those explains chatter marks.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bills of Exchange. Topic: Introduction and Concepts.
