Answer:
★ A nonrenewable resource that developed from the remains of ancient plants that lived in large swamps millions of years ago is COAL
Explanation:
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An exchange reaction occurs between compounds that, when written as a molecular equation, appear to involve the exchange of parts between the two reactants. An exchange reaction will occur when ions in solution form insoluble products, weak electrolytes, or non electrolytes.
Answer:
A
Explanation:
A gene holds the instructions that forms the proteins in our bodies and these proteins are used for our traits and bodies.