Question
Oceanic Deeps and Oceanic Trenches.
| Oceanic Deeps | Oceanic Trenches |
| (i) At places, deep, narrow and steeply sloping depressions are found on the ocean floor. The shallow depressions are called deeps. | (i) At places, deep, narrow and steeply sloping depressions are found on the ocean floor. The deeper depressions are called ocean trenches. |
| (ii) Active volcanoes and earthquakes are not seen in oceanic deeps. | (ii) Trenches are formed at convergent plate boundaries. Active volcanoes and earthquakes generally occur along the plate boundaries of oceanic trenches. |
| (iii) The Romanche Trench in the Atlantic Ocean close to the equator. | (iii) The Mariana Trench in the Pacific Ocean is 11 kms deep. |
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