The answer is
B. ecotourism
Lung is the answer, its a breathing structure.
"<span>Eubacteria, Archaebacteria, Protista, and Plantae " is the one list among the following choices given that </span><span>contains all the possible kingdoms. The correct option among all the options that are given in the question is the first option or option "A". I hope that this answer has actually come to your help.</span>
Answer:
it increases oxygen levels and decrease carbon dioxide levels
Competition will increased because more organisms will be competing for resources