Terrace farming is done on which of the following types of land?

Hills

The correct answer is Option (3) - Hills

Terrace farming is primarily done on hilly terrain or hills. This agricultural practice involves constructing terraces or steps on sloping land to create flat surfaces for cultivation. By building these terraces, farmers can effectively manage water runoff, prevent soil erosion, and maximize arable land in areas with steep slopes. Therefore, terrace farming is most commonly associated with hilly or mountainous regions where flat land for agriculture is limited.