Multiple choice

Caves, stalagmites, & stalactites are formed when this type of chemical weathering occurs:

  1. oxidation

  2. abrasion causes movement of underground rock

  3. acid in groundwater causes rock to dissolve

  4. acids from plants eat away at the rock

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Caves and karst features are created when slightly acidic groundwater reacts with limestone, dissolving the rock chemically.