Which of the following mineral is incorrectly matched with its chemical formula?

When any plane passing through the central axis of the body divides the organism into two identical halves called

Optimum depth of sowing for high yielding Mexican dwarf wheat is:

In murrah Buffalo what is the age at first calving

The rearing of young bee to replace the old queen bee is

The first step of plant breeding is

Constraints in the adoption of INM 

Acid delinting is recommended for fuzzy cotton seed at the rate of

The gas used for filling weather balloons is-