Why are lichens able to track air pollution to its source?
A) because they live a short time and they stay in one place
B) because they are long lived and they stay in one place
C) because they are widespread in the boreal forest and are long lived
D) because they are widespread in the boreal forest and highly mobile

Question

Why are lichens able to track air pollution to its source? 
A) because they live a short time and they stay in one place 
B) because they are long lived and they stay in one place 
C) because they are widespread in the boreal forest and are long lived 
D) because they are widespread in the boreal forest and highly mobile

Quizplus · Accepted Answer

Lichens are long lived and they grow in place, allowing them to accumulate pollutants in their tissues over time. This accumulation can be used to identify the source of pollution by comparing pollutant levels in lichens growing in different locations.

Why Are Lichens Able to Track Air Pollution to Its