Question:
Given below are two statements. Statement-I: Medial moraines are imperfectly formed ones as compared to lateral moraines. Statement-II: Medial moraines are indistinguishable from ground moraines. The correct answer is
Given below are two statements. Statement-I: Medial moraines are imperfectly formed ones as compared to lateral moraines. Statement-II: Medial moraines are indistinguishable from ground moraines. The correct answer is
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Moraines are accumulations of rock debris (till) carried and deposited by a glacier.
Updated On: Jun 16, 2026
- Only statement-I is correct
- Only statement -II is correct
- Both statement-I and statement-II are correct
- Both statement-I and statement-II are incorrect
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The Correct Option is A
Solution and Explanation
Concept:
Moraines are accumulations of rock debris (till) carried and deposited by a glacier. Lateral moraines form along the sides of a glacier, and when two glaciers join, the two inner lateral moraines merge to form a medial moraine running down the middle. Ground moraines are the broad sheets of till left beneath a glacier.
Step 1:
Evaluate Statement-I. Because a medial moraine forms from the merging of two lateral moraines, its material is mixed and its ridge form is less sharply defined, so it is described as imperfectly formed compared with a clean lateral moraine. This statement is correct.
Step 2:
Evaluate Statement-II. Medial moraines are distinct ridges running along the centre of the glacier surface, whereas ground moraines are flat sheets spread under the ice. They are clearly distinguishable from one another, so saying they are indistinguishable is wrong. Statement-II is incorrect.
Answer: Option (1) — Only statement-I is correct.
Moraines are accumulations of rock debris (till) carried and deposited by a glacier. Lateral moraines form along the sides of a glacier, and when two glaciers join, the two inner lateral moraines merge to form a medial moraine running down the middle. Ground moraines are the broad sheets of till left beneath a glacier.
Step 1:
Evaluate Statement-I. Because a medial moraine forms from the merging of two lateral moraines, its material is mixed and its ridge form is less sharply defined, so it is described as imperfectly formed compared with a clean lateral moraine. This statement is correct.
Step 2:
Evaluate Statement-II. Medial moraines are distinct ridges running along the centre of the glacier surface, whereas ground moraines are flat sheets spread under the ice. They are clearly distinguishable from one another, so saying they are indistinguishable is wrong. Statement-II is incorrect.
Answer: Option (1) — Only statement-I is correct.
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