Carbon, hydrogen, oxygen, and nitrogen are the most important elements. Small quantities of other elements are necessary for life. Carbon is the most abundant element in living matter. Nitrogen is continually re-circulated.
Answer:
Silver
Explanation:
The items make up iron and
iron contains copper,gold,lead and zinc.
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Carbon, hydrogen, oxygen, and nitrogen are the most important elements. Small quantities of other elements are necessary for life. Carbon is the most abundant element in living matter. Nitrogen is continually re-circulated.
Answer:
Silver
Explanation:
The items make up iron and
iron contains copper,gold,lead and zinc.