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Câu hỏi:

14/07/2024 44

The thing that makes it different from other caves in Phong Nha – Ke Bang National Park is _______. 

A. stalactites and stalagmites               

B. the two entrances into the cave 

Đáp án chính xác

C. its discovery by a local man             

D. large holes in the ceiling 

 Xem lời giải

Trả lời:

verified Giải bởi Vietjack

Thông tin: Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha ~ Ke Bang National Park.

Dịch:  

HANG SƠN ĐOÒNG

Nằm trong vùng núi đá vôi của Vườn quốc gia Phong Nha - Kẻ Bàng, hang Sơn Đoòng được tìm thấy lần đầu tiên vào năm 1991 bởi Hồ Khanh, một người dân địa phương. Năm 2009, hang đã được khám phá và công bố bởi một nhóm các nhà khoa học thuộc Hiệp hội nghiên cứu hang động Anh. Hang Sơn Đoòng được hình thành cách đây từ 2 đến 5 triệu năm, khi dòng sông chảy qua khu vực núi đá vôi và bị vùi lấp. Nước làm xói mòn đá vôi và tạo ra một đường hầm dưới lòng đất. Ở những vùng đá vôi mềm, sự sụp đổ của trần hầm tạo thành những lỗ hổng lớn, sau đó trở thành những mái vòm khổng lồ. Hang cao khoảng 200m, rộng 200m và dài ít nhất 8,5 km. Đặc biệt, Sơn Đoòng gồm hai lối vào, là hang động độc nhất vô nhị trong số các hang động đã được khám phá tại Vườn quốc gia Phong Nha ~ Kẻ Bàng. Khám phá hang động, du khách không khỏi ngỡ ngàng với khung cảnh kỳ vĩ với muôn vàn nhũ đá, trong đó có những măng đá khổng lồ cao hơn 70m. Sâu bên trong hang tồn tại một khu rừng nhiệt đới hùng vĩ được các nhà thám hiểm gọi là “Vườn địa đàng”. Rừng rậm là nơi sinh sống của hệ động vật và thực vật đa dạng. Bên cạnh đó, hang sở hữu một dòng sông ngầm dài 2,5 km. Cách “Vườn địa đàng” không xa là một “bộ sưu tập ngọc trai” khổng lồ gồm hàng chục nghìn viên đá nhỏ trong ao khô, góp phần tạo nên vẻ đẹp tráng lệ cho hang động.

Chọn B

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