When the thickness is greater than 20 cm, the veins area called ___________
A : a. Thick veins
B : b. Fissure veins
C : c. Joint veins
D : d. Broad veins
Joints do not have dip and strike.
Pick the wrong statement.
A : a. A joint set is a group of joint surfaces
B : b. The surfaces trend in same direction
C : c. The surfaces have almost same dip
D : d. The joint surfaces do no trend in same direction
Group of joint sets are called ___________
A : a. Joint system
B : b. Joint group
C : c. Joint class
D : d. Joint collection