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Answer: The correct option is D: Is alloyed with carbon and chromium to make stainless steel.
Explanation: Because of its physical characteristics, iron is a material that tends to oxidize easily. With the chromium alloy stainless steel is created, which for its quality can be used in the manufacture of structural steels.
<u>Answer:</u>
<em>Convergent plate boundary is rich in gold and silver.
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<u>Explanation:</u>
There are three types of plate boundary such as Convergence, Divergence and Transform plate boundary. Most metallic minerals found in convergence plate boundary. Gold and silver are deposited in both convergent and divergent margins but rich in Convergent plate margin. Precious metals such as plutonium, gold, silver, etc. are mostly found in convergence of two plates. Convergence occurred in three ways such as Continent–Continent, Ocean–Ocean, Continent–Ocean.
Answer:
the answer is D.because the D represent cotyledon and at the same time the leaves which stores food during photosynthesis.