Answer:
Mg would blow off. AI would be affective to copper but not to MG
Explanation:
B will be the one I think tbh
The contraction of the triceps muscle causes the arm to flex. The contraction of the triceps muscle causes the arm to extend. When added to the force of the biceps contracting it provides extra force to the ball.
The answer is A
Lithium's atomic weight is 6.94 g/mol.

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