In which year a non statutory minority commission was established in India ?

Consider the following statements:

1. Brackish water is water that has less salinity than seawater
2. Brackish water is water that has less density than seawater

Which among the above statements is / are true?

Consider the following crops:

1. Cowpea
2. Sorghum
3. Guar plant
4. Barley

Which of the above are Drought Resistance or Drought Tolerant crops?

Which of the following states has the highest deposits of Tertiary coal in India?

Consider the following chemical compounds with their common names:

1. Blue vitriol - Copper sulphate
2. Caustic soda - Sodium bicarbonate
3. Chile saltpeter - Sodium nitrate
4. Gypsum - Calcium carbonate

Which of the above is/are correctly matched?