    Sentence 1: What ‘was. the. ‘théorized maximum  population density” per square kilometre’ for..the  Amazon rainforest?    ‘Sentence 2 She aimed that a population density of  0.2 inhiabitants per square kilometre (0.52/sq mi) is  ‘the maximiam that can be. sustained in the rainforest  through huntirig, with agriculture'néeded to host.a  larger popiilation.