Bihar is a significant contributor to India’s:

Inland fish production
Marine fish exports
Fish oil production
Pearl farming

The correct answer is: a) Inland fish production.

Bihar is a landlocked state in India, and as such, it does not have any coastline. This means that it cannot contribute to India’s marine fish exports. However, Bihar does have a large number of rivers and lakes, and as such, it is a significant contributor to India’s inland fish production. In fact, Bihar is the second-largest producer of inland fish in India, after West Bengal.

The other options are incorrect because:

  • Option b) is incorrect because Bihar does not have any coastline and therefore cannot contribute to India’s marine fish exports.
  • Option c) is incorrect because Bihar does not have a significant fish oil production industry.
  • Option d) is incorrect because Bihar does not have a significant pearl farming industry.

In conclusion, Bihar is a significant contributor to India’s inland fish production.