Organic
Limestone that is formed from shells of clams and other organism is organic
Land surfaces are sculpted into a wide diversity of shapes through the actions of water, wind, ice, and gravity.
Answer:
A river delta is a low-lying plain or land form that occurs at the mouth of a river near where it flows into an ocean or another larger body of water. Deltas' greatest importance to human activities, fish and wildlife lay in their characteristic highly fertile soil and dense, diverse vegetation.
Explanation:
That would be the Himilayas. Hope that helped!