I am sorry, but I am not sure what you are asking. :)
Answer:
Human interaction with the ecosystem has rapidly spread disease to Yellowstone's wildlife, which has proven to have adverse effects on populations. Also, humans tend to leave trash in poor areas. Littering is a problem in Yellowstone because it can be ingested by the wildlife and also pollute the park...
hope it helped you :)
Well the trees are the fuel for a fire and the sun can start a wild fire so I would probably say the things on the ground but I’m not completely sure
