Lichens are important in the studies on atmospheric pollution because they
A. can also grow in greatly polluted atmosphere
B. can readily multiply in polluted atmosphere
C. efficiently purify the atmosphere
D. are sensitive to pollutants
Answer:A
Lichens are important in the studies on atmospheric pollution because they
A. can also grow in greatly polluted atmosphere B. can readily multiply in polluted atmosphere C. efficiently purify the atmosphere D. are sensitive to pollutants