The answer is C. ozone layer. Good luck!
Answer:
A. Karsty Topography
Explanation:
Karsty topography is characterized by numerous caves, sinkholes, fissures, and underground streams and it is usually found regions of high rainfall where bedrock consists of carbonate-rich rock, such as limestone, which is easily dissolvable
Green house effect & Warming that results when the atmosphere traps radiating from earth towards space <span />