The surface area available for the nth layer is equal to the coverage of ____________
A. (n-1)th layer
B. (n+1)th layer
C. nth layer
D. none of the mentioned
Answer:A
The surface area available for the nth layer is equal to the coverage of ____________
A. (n-1)th layer B. (n+1)th layer C. nth layer D. none of the mentioned
Explanation: The surface area available for the nth layer is equal to the coverage of