The mineral important for the fertilizer industry found in Karnataka:

The correct answer is: A) Potash

Potash is a mineral that is important for the fertilizer industry. It is found in Karnataka, India. Potash is a type of salt that is rich in potassium. Potassium is an essential nutrient for plants. It helps plants to grow and produce healthy crops. Potash is also used in the production of other chemicals, such as fertilizers, detergents, and explosives.

The other options are incorrect because they are not minerals that are important for the fertilizer industry.

• Phosphate is a mineral that is found in bones and teeth. It is also used in the production of fertilizers, detergents, and other chemicals. However, phosphate is not as important for the fertilizer industry as potash.
• Gypsum is a mineral that is used in the production of plaster, drywall, and other building materials. It is also used in the production of fertilizers, but it is not as important for the fertilizer industry as potash.
• Sulphur is a mineral that is used in the production of sulfuric acid, which is used in a variety of industries, including the fertilizer industry. However, sulphur is not as important for the fertilizer industry as potash.