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3 answers

If you mean objects containing each of these elements:

Iron: bridges, cars, appliances, tools, pipe, railroad track etc.

Nitrogen: fertilizer, ammonia cleaners, nylon

Phosphorous: bones, matches, fertilizer

2007-11-01 13:51:15 · answer #1 · answered by Flying Dragon 7 · 0 0

Iron is in iron oxide(FeO2) or rust
Nitrogen in ammonia(NH3) the waste product from fish
Phophorous in ATP(Adenosie TriPhophsate) the chemical used for energy in organsims

2007-11-01 20:56:38 · answer #2 · answered by Anonymous · 0 0

iron is steel
nitrogen is dna bases
phosphorus is bones

2007-11-01 20:46:04 · answer #3 · answered by Anonymous · 0 0

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