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If a cold ocean current passes near a region, what can be the possible effect?

Answer and explanation

Correct answer: Coastal temperature may relatively decrease

Direct answer: Option A is correct. Ocean currents are moving streams of seawater that can carry warm or cold water. A cold current lowers the temperature of nearby coastal air and water compared with what might otherwise be expected. The reasoning is: cold water flows near the coast, it cools the air touching or moving over it, and the nearby coastal temperature may therefore decrease. The word “may” is important because latitude, winds, season and landforms also influence climate. Option A is correct because it states a possible relative cooling of the coast. Option B is wrong because a current cannot increase mountain height; mountain building is a geological process. Option C is wrong because latitude means distance north or south of the Equator and does not change when a current flows. Option D is wrong because a cold current cannot stop sunlight. Memory cue: warm current warms nearby coasts; cold current cools them.

Related tags

ClimateCold-CurrentCoast

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