36 Pure mercury can be mined. Most often it is found in rust-colored rocks. To move out the mercury, the rocks are crushed and heated, while the vapor is caught and cooled until it becomes a silvery liquid. How can we take the mercury from the rocks?
(A) by hand
(B) by heat
(C) by silver
(D) by liquid

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統計： A(51), B(853), C(79), D(180), E(0) #598039

詳解 (共 3 筆)

#862213
純汞可開採。大多數情況下它是在鐵鏽色的岩石中發現的。取出汞，岩石破碎，加熱，而蒸汽被捕獲並冷卻，直到它變成一個銀色的液體。我們怎樣才能把汞從岩石？
[google 翻譯]
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#2753825

mercury 水銀

rust-colored 鐵鏽色

vapor 蒸氣  

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#6058743
minded  v. 開採
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