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Trích đoạn Trình bày đặc điểm chung của sinh vật Việt Nam? Giải thích vì sao sinh vật nước ta giàu cĩ về thành phần lồi? Tài nguyên rừng: SỬ DỤNG VÀ BẢO VỆ CÁC TÀI NGUYÊN KHÁC: Hạn chế: tàu thuyền cĩ cơng suất nhỏ, đánh bắt ven bờ là chính. Kinh tếxã hội: Là vùng cĩ nhiều dân tộc ít người, mức sống của dân cư cịn thấp; cơ sở hạ tầng phát triển chưa đồng bộ; chịu tổn thất lớn về người và của trong chiến tranh Mạng lướ

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