Consider the following materials1. Nickel2. Silver3. Oxygen4. Aluminiu – McqOptions

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1.	Consider the following materials1. Nickel2. Silver3. Oxygen4. Aluminium The correct sequence in the order of decreasing permeability is
A.	1, 4, 3, 2
B.	1, 4, 2, 3
C.	4, 1, 3, 2
D.	4, 1, 2, 3
Answer» C. 4, 1, 3, 2

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