Compounds which are plentiful in nature are calcium carbonat
Câu hỏi
Nhận biếtCompounds which are plentiful in nature are calcium carbonate, calcium sulphate, and aluminum oxide.
Đáp án đúng: A
Lời giải của Tự Học 365
Giải chi tiết:
Giải thích:
plentiful = abundant: dồi dào, phong phú
obscure: vô danh (=unknown), khó hiểu (difficult to understand)
unstable: không ổn định
reliable: đáng tin cậy
Tạm dịch: Các hợp chất dồi dào trong tự nhiên là canxi cacbonat, canxi sulphat và oxit nhôm.
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