The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as ‘Dense’ is

The minimum number of annular rings to be seen in every 2.54 cm in the

1.	The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as ‘Dense’ is
A.	10
B.	20
C.	25
D.	30
Answer» B. 20