How might ethnobotany play a role in pharmacology?

The positive and negative effects of medicinal plant research, plant collection, and other activities on local communities;Effects of increased use of medicinal plants on wild plant populations and possible conservation concerns for protection of biological diversity;Effects of exploitation of cultures and changing economic structures caused by those who use researchers’ publications for other purposes such as ecotourism or economic development.

They must also actively encourage:

Recognition of intellectual property rights and contributions made by local or indigenous communities and individuals who share specialist knowledge;Equitable distribution of benefits obtained from the use of resources, including genetic material or chemical structures;

"air pollution" is the correct answer i believe

Ithink it's traditional