National Parks and Preserves, (1) ______ public lands or bodies of water within a country, set aside by the (2) ______ to protect ecosystems, ...Đoạn văn22/30National Parks and Preserves, (1) ______ public lands or bodies of water within a country, set aside by the (2) ______ to protect ecosystems, ...hospital school county governmentGiải thíchĐáp án D Giải thích: government: chính phủ