Question

The following pairs are the types of rocks on the basis of the agents of their formation. Which of the following is incorrect?

Options

• Lacustrine : lake beds

• Aeolian : sand particles

• Glacial : ocean floor

• Riverine : flowing waters of rivers

Answer 1

Glacial : ocean floor

Explanation:

Glacial deposits are formed by the action of moving glaciers, not on the ocean floor. Glacial rocks and sediments are produced when glaciers erode, transport, and deposit materials on land, often leaving behind moraines, till, and other landforms typical of cold regions. The ocean floor, on the other hand, is associated with marine deposits formed under the sea. Therefore, the pair “Glacial : ocean floor” is incorrect because it mismatches the agent (glaciers) with the wrong environment (ocean floor).