Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is_________________?
(A) 0°
(B) 30°
(C) 45°
(D) 90°
Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is_________________?
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