I would say C.
Dams don't use any chemical means to get their energy output, so B and D are out. A converts to potential energy which can't produce electricity without being set in motion, so it doesn't work. That leaves B, which makes sense. Potential energy to mechanical energy to electrical energy.
(c) One corollary of the second law of thermodynamics states that the change in entropy<span> of </span>a closed system<span> must be greater than zero or equal to zero. (d) </span>A closed system can experience an increase in entropy only when<span> irreversibilities are present within the </span>system<span> during the process.</span>
The correct order is kingdom, class, family, order, phylum, genus, species
The charge of the electrical impulses sent from stimuli is extremely positive. Thus, the correct option is A. The net charge of such electrical impulses is positive because of the positively charged ions of the Na+.
<h3>What is an electrical impulse?</h3>
An electrical impulse may be defined as a nerve impulse that contains an electrical signal which travels throughout the body by the axon terminal.
In the resting potential state, the potential difference is -80mV, while after reaching the electrical impulse it changes to +40mV. This happens due to an electrical imbalance between sodium and potassium influx and efflux.
Therefore, the correct option is A.
To learn more about Electrical impulses, refer to the link:
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