A number of elements are available in earth’s crust but most abundant elements are ____________. (i) Al and Fe (ii) Al and Cu (iii) Fe and Cu (iv) Cu and Ag
Answered Feb 05, 2023
(i) Al and Fe
The Right option is : (b) 1, 2 and 3
(a) Phosphorus cycle is also called as sedimentary cycle because the main reservoir is rocks and the earth crust.
0.02% of carbon in earth's crust.
Water containing calcium and magnesium salts is known as hard water. Among the given salts, calcium sulphate, magnesium chloride and calcium chloride can be dissolved in water to obtain hard...
(a) the crust of the earth
D correct
(ii), (iii) (ii) CoF2 (iii) Hg2F2
BOSS is an Indian OS. It is developed by C-DAC derived from Debian for enhancing the use of Free/Open source software throughout India.
(a) Aluminium. (b) Oxygen.
Install the Bissoy app to consult with a doctor.
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