When a cold air mass and a warm air mass...

Question 1 / 2066636ee928f7522a1c51939e

Question 1 of 2066636ee928f7522a1c51939e

When a cold air mass and a warm air mass meet, and there is no horizontal motion of either air mass, it is called a(n) __________.

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Question 1 of 20

66636ee928f7522a1c51939e

When a cold air mass and a warm air mass meet, and there is no horizontal motion of either air mass, it is called a(n) __________.

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🔍 Key Concepts

• Air masses and how they interact • Difference between fronts: cold, warm, stationary, occluded • What happens when there is no horizontal movement of the air masses

💭 Think About

• Ask yourself: which type of front involves two air masses meeting but neither one is advancing over the other? • Which named fronts (cold, warm, occluded) specifically involve one air mass moving and replacing another? • If a front is described mainly by motion (cold air advancing vs warm air advancing), does that match the situation in the question where there is no movement?

✅ Before You Answer

• Verify which front forms when air masses meet and one actively displaces the other. • Identify the front that, by definition, occurs when the boundary is not moving significantly. • Eliminate any option whose definition requires motion of one air mass into the other.

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Question 1 of 20

When a cold air mass and a warm air mass meet, and there is no horizontal motion of either air mass, it is called a(n) __________.

cold front

stationary front

occluded front

warm front

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