Duck farming is popular in Assam due to:

Availability of water bodies
Low input costs
High demand for duck meat and eggs
All of the above

The correct answer is: d) All of the above.

Duck farming is popular in Assam due to the following reasons:

  • Availability of water bodies: Assam is a state in northeastern India that is known for its rivers, lakes, and wetlands. These water bodies provide a natural habitat for ducks, and they also make it easy to raise ducks on a commercial scale.
  • Low input costs: Duck feed is relatively inexpensive, and ducks are able to forage for food on their own. This makes duck farming a relatively low-cost business.
  • High demand for duck meat and eggs: Duck meat and eggs are both popular in Assam, and there is a high demand for these products. This makes duck farming a profitable business.

In addition to these factors, duck farming is also popular in Assam because it is a sustainable form of agriculture. Ducks help to control pests and weeds, and they also fertilize the soil with their droppings. This makes duck farming a beneficial practice for the environment.