What kind of pollution was the most abundant in the us national parks? how did this pollution affect park wildlife and ecosystems?

The most prominent kind of pollution during 1989 was air pollution, as several of the country's national parks were hiding behind the air pollution curtains. The pollution started to decline biodiversity as various species were vacating the polluted regions for the cleaner ones, as they were not able to thrive in such circumstances. Due to this some plants even died like Jeffrey pine trees in Sequoia. The biological diversity was at threat as scientists had observed that acid rain and ozone depletion were making the things even worse.

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms