The correct answer is A) Bellary.
Bellary is a district in the Indian state of Karnataka. It is known for its iron ore deposits, which are some of the largest in the world. The district is also home to a number of mining companies, which extract the ore and export it to countries around the world.
The iron ore deposits in Bellary are located in the eastern part of the district. The deposits are found in a belt that runs from the town of Bellary to the town of Hospet. The ore is of high quality and is used to make steel.
The mining of iron ore in Bellary has had a significant impact on the environment. The mining has caused deforestation, soil erosion, and water pollution. The mining has also led to social problems, such as displacement of people and conflict between mining companies and local communities.
Despite the environmental and social problems, the mining of iron ore is a major source of income for the people of Bellary. The mining companies provide jobs to thousands of people and contribute to the local economy.
The other options are incorrect because they are not districts in Karnataka that are known for their iron ore deposits. Shimoga is a district in the northern part of Karnataka. Tumkur is a district in the central part of Karnataka. Davangere is a district in the southern part of Karnataka.