The answer I believe is number 1
Answer:
Testing Platismatia glauca could help scientists understand which pollutants have the largest effect on lichen populations. It also may help scientists understand the current pollutant levels in the atmosphere compared to the population of lichens on the trees. This information can help them more accurately predict population changes over time.
hope this helps:)
Quackery<span> is the promotion of fraudulent or ignorant medical practices. A </span>quack<span> is a "fraudulent or ignorant pretender to medical skill" or</span>"a person who pretends, professionally or publicly, to have skill, knowledge, or qualifications he or she does not possess; a charlatan".
I'm pretty sure it is 7.<span />
