The one that is not a magnesium ore is:
The mineral that does not contain Magnesium is
Many elements are found in living organisms either free or in the form of compounds. One of the following is not found in living organisms.
(a) Silicon (b) Magnesium
(c) Iron (c) Sodium
The agency responsible for the development of space science programmes in India is:
(a) INSAT
(b) ORS
(c) IRS
(d) ISRO