Question 926Navigation General

70% to pass

An isotherm is _______________.

A a line connecting points of equal barometric pressure on a weather map
B an instrument that measures the climatological effects of temperature
C a line connecting points of equal temperature on a weather map
D a line on a weather map connecting equal points of both temperature and pressure
AI Explanation

The correct answer is C) a line connecting points of equal temperature on a weather map. An isotherm is a line on a weather map that connects points of equal temperature. This allows meteorologists to identify temperature patterns and gradients across a given region. The other answer choices are incorrect: A) This describes an isobar, which is a line connecting points of equal barometric pressure. B) This does not accurately describe what an isotherm is. D) This combines the concepts of an isotherm and an isobar, but an isotherm specifically refers to a line of equal temperature.

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Official Resources
USCG Navigation Rules (COLREGS) 33 CFR Navigation Rules USCG National Maritime Center
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