Which feature forms when a sea cave is eroded through and opens on both sides?
Answer and explanation
Correct answer: Sea arch
The governing concept is marine erosion by waves. Waves attack a weakness in a sea cliff and first enlarge it into a sea cave; continued erosion removes the rock through the cave until an opening appears on both sides, producing a sea arch. A beach and natural levee are depositional features, while a barchan is a wind-made crescent dune, so none of them fits the described coastal erosion sequence.
Frequently asked questions
What is the correct answer to this question?
Sea arch
Why is this the correct answer?
The governing concept is marine erosion by waves. Waves attack a weakness in a sea cliff and first enlarge it into a sea cave; continued erosion removes the rock through the cave until an opening appears on both sides, producing a sea arch. A beach and natural levee are depositional features, while a barchan is a wind-made crescent dune, so none of them fits the described coastal erosion sequence.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Bills of Exchange. Topic: Introduction and Concepts.
