''but''的用法

Maxqweasdzxc

Past assessments of the Brazilian rain forest have used satellite images to tally deforested areas, where farmers and ranchers have clear-cut and burned all the trees, but such work has not addressed either logging, which is the removal of only selected trees, as well as surface fires, burning down individual trees but do not denude the forest. 此题正确答案是''which removes only selected trees, or surface fires that burn''. 这里我有一个问题, 就是如果 ''but''不存在, 如果我选''removing only selected trees, or surface fires, burning'', 除了逻辑上不正确（removing, burning不能由''not addressed''发出), 语法上是否正确?

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