Ocean currents can moderate climate by distributing
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Ocean currents can moderate climate by distributing heat from the equator upward toward the poles. This is because ocean waves and currents are  alter the climate of the place that they are in by making heat from the equator to the poles and the cold from the poles to the equator as well.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.