Question : Pyrolusite is an ore of:

Option 1: Titanium

Option 2: Manganese

Option 3: Chromium

Option 4: Uranium

Question : ______________was the leading producer of manganese ore, accounting for 33% of total production during 2019–20 in India.

Option 1: Odisha

Option 2: Madhya Pradesh

Option 3: Maharashtra

Option 4: Karnataka

Question : India is one of the largest producers of manganese ore in the world along with

Option 1: China and Russia

Option 2: Brazil and Russia

Option 3: Australia and U.S.A.

Option 4: South Africa and U.S.A.

Question : In India,'Yellow revolution' is associated with

Option 1: production of paddy

Option 2: production of oilseeds

Option 3: production of tea

Option 4: production of flower

Question : Which of the following are the main components of stainless steel?

Option 1: Iron and carbon

Option 2: Silver

Option 3: Iron, chromium and nickel

Option 4: Iron and nickel