World Physical Aspects

Geography and Environment (CSC)

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A gorge is a deep valley with very steep to straight sides. Which among the following features distinguishes a canyon from gorge?

1. Canyons are wider at its top than its bottom.

2. Canyons have uniform width from top to bottom.

3. Canyons have steep step like side slopes.

4. Canyons are usually formed in horizontal bedded sedimentary rocks.

Select the correct answer using the codes given below.

1, 2 and 3 only

2, 3 and 4 only

1, 3 and 4 only

1, 2 and 4 only

Explanation:

STATEMENT 2 IS INCORRECT.A gorge is almost equal in width at its top as well as its bottom. In contrast a canyon is wider at its top than at its bottom. A canyon is a variant of gorge.
A gorge is a deep valley with very steep to straight sides.
A canyon is characterised by steep step like side slopes and may be as deep as a gorge.
A gorge is almost equal in width at its top as well as its bottom. In contrast a canyon is wider at its top than at its bottom. A canyon is a variant of gorge.
Canyons commonly form in horizontal bedded sedimentary rocks and gorges form in hard rocks.