Answer: Hello, a thing that is composed of two or more separate elements; a mixture.
Explanation: A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound This can help you find the answer cause i cant see the answer chocies
Answer:
D
Explanation:
Prokaryotic are simple cells and do not have nucleus.
The two-layered sac surrounding the heart is the pericardium.
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Coal is considered a non renewable source because the earth cannot replenish it.
