The right answer is limit the amount of endemic species allowed. The Madrid Protocol was a response to the attempt of protecting the environment in Antarctica. Via 6 annexes of rules it prohibits all resources exploration activities only allowing scientific research and touristic activity, under well defined categories, in the area.
limit the amount of endemic species allowed - False - This assumption makes no sense, because the endemic species does not follow a maximum number of species. All the efforts of the protocol is to maintain the ecosystem and its fauna and flora, as untouchable as possible.
protect historical sites and distinct ecosystems - True - Under the Annex V the protocol designated areas of protection because of its outstanding environmental.
limit the amount of chemicals that can be dumped - True - Under the Annex IV the protocol prohibits the discharge of chemicals and garbage in the Antarctic treaty area.
limit how food waste can be moved from ships - True - Also under the Annex IV we have the rules of discharge of waste, sewage and ship retention capacity.