What is the second most abundant element in the earth‟s crust?
A. Silicon
B. Aluminium
C. Sodium
D. Magnesium
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B. Aluminium
C. Sodium
D. Magnesium
A. 50%
C. 150%
D. None of these
B. John Nicholson
C. Robert Hooke
D. Theoder schwann
B. 25th October
C. 26th October
D. 27th October
B. Cell of heart
C. Cell of kidney
D. Cell of spleen
B). مرزا غالب
C). غلام عباس
D). احمد ندیم قاسمی