11. Iron is a solid metal, and oxygen is a gas. When iron and oxygen atoms combine, they form a solid called iron oxide.
How should iron oxide be categorized?
A atom
B element
C gas
D molecule

D. Molecule

when iron and oxygen combine they will make a molecule

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

the correct answer should be false

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