10. a chemical is a substance that is not natural. *\ntrue\nfalse
10. a chemical is a substance that is not natural. *\ntrue\nfalse
Answer
Brief Explanations:
Chemicals can be natural or synthetic. Many substances found in nature, like water (H₂O), oxygen (O₂), and various minerals, are chemicals. So the statement that a chemical is a non - natural substance is incorrect.
Answer:
False