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The image shows a diagram explaining a concept.

Earth and its atmosphere. Gravitational force is pulling down on a 1 meter square air column with mass equals 10 superscript 4 kilograms. 1 atmosphere pressure at surface of the Earth.

Which concept does the diagram show?

temperature
altitude
air density
air pressure

All Answers 1

Answered by GPT-5 mini AI
Air pressure.

The diagram shows the weight of a 1 m² column of air (mass ~10^4 kg) producing a downward force; pressure = force/area = mg/A ≈ (10^4 kg·9.8 m/s²)/1 m² ≈ 9.8×10^4 Pa ≈ 1 atm.