Which is TRUE concerning air masses near the...

Question 1 / 2707066636ee928f7522a1c51a372

Question 1 of 2707066636ee928f7522a1c51a372

Which is TRUE concerning air masses near the earth's surface?

Question 1 of 27070

Which is TRUE concerning air masses near the earth's surface?

🔍 Key Concepts

• Pressure gradient force – how air moves between high and low pressure areas • Coriolis effect – how the earth’s rotation deflects moving air • Typical west-to-east movement of weather systems in mid‑latitudes (westerlies) vs what drives individual air parcels

💭 Think About

• Think about the basic rule: if you have a region of higher pressure next to a region of lower pressure, in which direction does air naturally tend to move? • Ask yourself whether the earth’s rotation and gravity are major influences on wind and air masses, or if they can be ignored. • Consider what you know about the usual track of weather systems across North America and whether that pattern is the fundamental rule for all air movement.

✅ Before You Answer

• Verify which forces ALWAYS act on air near the surface: pressure gradient, gravity, Coriolis (rotation), and friction. • Check whether any option says a force does not act on air; be suspicious of choices that deny obvious physical forces like gravity or rotation. • Confirm that regional patterns (like typical storm tracks over North America) are not being confused with the basic physical rule of how air moves relative to pressure.

Question 1 of 27070

Which is TRUE concerning air masses near the earth's surface?

They are not deflected by the earth's rotation

They move from areas of high pressure to areas of low pressure

Air masses are not affected by the earth's gravity

In North America the air masses move from east to west

Question 1 / 2707066636ee928f7522a1c51a372

Question 1 of 2707066636ee928f7522a1c51a372

Which is TRUE concerning air masses near the earth's surface?

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Question 1 of 27070

Which is TRUE concerning air masses near the earth's surface?