Exercise 8
Read “Threat Down Below: Polluted Caves Endanger Water Supplies, Wildlife”. What were some of the common contaminants mentioned in numerous caves?
Click here for solution to Exercise 8
Return to where text linked to Exercise 8
Read “Threat Down Below: Polluted Caves Endanger Water Supplies, Wildlife”. What were some of the common contaminants mentioned in numerous caves?
Click here for solution to Exercise 8
Return to where text linked to Exercise 8