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An atom of nitrogen had seven protons in its nucleus. how many electrons does it have
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Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?
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The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body
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How would gravity cause planets to move if they had no inertia...
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