The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.
The catalyst lowers the activation energy.
The best illustration that represents the interaction is D
The best and most correct answer among the choices provided by your question is the second choice.
<span>The major contributions of Maury included mapping the ocean bottom.</span>
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