1 and 3 only because metal are easily to loss electron while non metal are difficult to loss electron that's why it called heavy elements.
Answer: c. balance
Explanation: Mass is the amount of matter contained in a body.
Answer:
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Explanation:
Its the only answer that actually makes sense and i got it right on the quiz.
Love the profile picture tho
Answer:
In the respiratory system, oxygen is breathed in and carbon dioxide ( a green house gas) is breathed out.
