Which of these four numbered features on the surface or in a cave can be formed by the dissolution or collapse of limestone?
A) 1 and 2
B) 2 and 3
C) 3 and 4
D) 1 and 3
E) 1 and 4

Question

Which of these four numbered features on the surface or in a cave can be formed by the dissolution or collapse of limestone? 
A) 1 and 2 
B) 2 and 3 
C) 3 and 4 
D) 1 and 3 
E) 1 and 4

Quizplus · Accepted Answer

The Answer of Which of these four numbered features on the surface or in a cave can be formed by the dissolution or collapse of limestone? 
A) 1 and 2 
B) 2 and 3 
C) 3 and 4 
D) 1 and 3 
E) 1 and 4

Which of These Four Numbered Features on the Surface or in a Cave