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°
grains of any layer to grains of adjacent layers is
(A) 0°
(B) 30°
(C) 45°
(D) 90°