The Atmosphere: Layers in the Atmosphere

The video explains how breathing is affected by elevation due to differences in atmospheric oxygen levels. It describes the layers of the atmosphere, which are defined by temperature variations, and how gravity holds these layers to Earth. The video also discusses how air pressure decreases with altitude and the role of temperature in defining atmospheric layers.

Why is breathing more challenging at higher elevations?

• The air is colder at higher elevations.

• There is more carbon dioxide in the air.

• The air pressure is higher.

• There is less oxygen in the air.

What force is responsible for holding the layers of the atmosphere to the Earth?

• Centrifugal force

• Friction

• Gravity

• Magnetism

How does gravity affect the air closer to the Earth's surface?

• It decreases the air's pressure.

• It makes the air denser.

• It increases the air's temperature.

• It makes the air lighter.

What role does temperature play in the atmosphere?

• It delineates the layers of the atmosphere.

• It controls the wind speed.

• It affects the density of the air.

• It determines the color of the sky.

What is a characteristic of different atmospheric layers?

• They all have the same temperature.

• They have the same air pressure.

• They possess properties that affect temperature.

• They are all at the same altitude.