Terrace cultivation of horticultural crops is common in:

The correct answer is: c) Hilly areas.

Terrace cultivation is a farming technique used on steep slopes to create a series of flat, level terraces. This helps to reduce soil erosion and makes it easier to plant and harvest crops. Terrace cultivation is most common in hilly areas, where the land is naturally sloping.

Option a) River valleys are not typically used for terrace cultivation because the land is often too flat. Option b) Plains are also not typically used for terrace cultivation because the land is often too dry. Option d) Wetlands are not typically used for terrace cultivation because the land is

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