The subtopics of stratopause are:

• Definition
• Location
• Composition
• Temperature
• Pressure
• Ozone layer
• MesosphereMesosphere
• ThermosphereThermosphere
• Exosphere
  The stratopause is the boundary between the StratosphereStratosphere and the mesosphere in Earth’s AtmosphereAtmosphere. It is located at an altitude of approximately 50 kilometers (31 mi). The stratopause is characterized by a sharp increase in temperature with increasing altitude. This is due to the presence of ozone, which absorbs ultraviolet radiation from the Sun. The ozone layer is located in the stratosphere, and it is responsible for protecting life on Earth from the harmful effects of ultraviolet radiation.

The stratopause is a region of high pressure, with an average pressure of about 0.01 atmospheres. The composition of the stratopause is similar to that of the lower atmosphere, with nitrogen and oxygen making up the majority of the gases. The stratopause is also home to a number of trace gases, including ozone, water vapor, and carbon dioxide.

The temperature of the stratopause varies with latitude. At the equator, the stratopause is typically about -80 degrees Celsius (-112 degrees Fahrenheit). At the poles, the stratopause is typically about -60 degrees Celsius (-76 degrees Fahrenheit). The temperature of the stratopause is highest at the equator and lowest at the poles because the Sun’s rays are more direct at the equator.

The pressure of the stratopause also varies with latitude. At the equator, the pressure of the stratopause is typically about 0.01 atmospheres. At the poles, the pressure of the stratopause is typically about 0.005 atmospheres. The pressure of the stratopause is lowest at the poles because the atmosphere is thinner at the poles.

The ozone layer is a region of the stratosphere that contains high concentrations of ozone. Ozone is a molecule that is made up of three oxygen atoms. Ozone absorbs ultraviolet radiation from the Sun, which helps to protect life on Earth from the harmful effects of ultraviolet radiation.

The mesosphere is the layer of Earth’s atmosphere that is located above the stratosphere and below the thermosphere. The mesosphere is characterized by a decrease in temperature with increasing altitude. The mesosphere is the coldest layer of Earth’s atmosphere, with temperatures reaching as low as -100 degrees Celsius (-148 degrees Fahrenheit).

The thermosphere is the layer of Earth’s atmosphere that is located above the mesosphere. The thermosphere is characterized by an increase in temperature with increasing altitude. The thermosphere is the hottest layer of Earth’s atmosphere, with temperatures reaching as high as 2,000 degrees Celsius (3,632 degrees Fahrenheit).

The exosphere is the outermost layer of Earth’s atmosphere. The exosphere is characterized by a very low density of gas molecules. The exosphere is not considered to be part of Earth’s atmosphere by some scientists.

Stratopause

The stratopause is the boundary between the stratosphere and the mesosphere. It is located at an altitude of about 50 kilometers (31 miles). The stratopause is the coldest layer of the atmosphere, with temperatures as low as -85 degrees Celsius (-121 degrees Fahrenheit). The stratopause is also the layer where the ozone layer is located.

Definition

The stratopause is the boundary between the stratosphere and the mesosphere. It is located at an altitude of about 50 kilometers (31 miles). The stratopause is the coldest layer of the atmosphere, with temperatures as low as -85 degrees Celsius (-121 degrees Fahrenheit). The stratopause is also the layer where the ozone layer is located.

Location

The stratopause is located at an altitude of about 50 kilometers (31 miles). It is the boundary between the stratosphere and the mesosphere.

Composition

The stratopause is composed of nitrogen, oxygen, and argon. It also contains small amounts of other gases, such as ozone and water vapor.

Temperature

The stratopause is the coldest layer of the atmosphere, with temperatures as low as -85 degrees Celsius (-121 degrees Fahrenheit). The temperature at the stratopause is determined by the balance between the absorption of solar radiation by ozone and the emission of infrared radiation by the atmosphere.

Pressure

The pressure at the stratopause is about 100 times lower than the pressure at sea level. The pressure at the stratopause is determined by the weight of the atmosphere above it.

Ozone layer

The ozone layer is located in the stratosphere. It is a region of the atmosphere that contains high concentrations of ozone. The ozone layer absorbs ultraviolet radiation from the sun, which helps to protect life on Earth from the harmful effects of this radiation.

Mesosphere

The mesosphere is located above the stratosphere and below the thermosphere. It is the fourth layer of the atmosphere, extending from about 50 to 85 kilometers (31 to 53 miles) above the Earth’s surface. The mesosphere is the coldest layer of the atmosphere, with temperatures as low as -100 degrees Celsius (-148 degrees Fahrenheit).

Thermosphere

The thermosphere is located above the mesosphere and below the exosphere. It is the fifth layer of the atmosphere, extending from about 85 to 600 kilometers (53 to 373 miles) above the Earth’s surface. The thermosphere is the hottest layer of the atmosphere, with temperatures reaching up to 2,000 degrees Celsius (3,632 degrees Fahrenheit).

Exosphere

The exosphere is the outermost layer of the atmosphere. It is a very thin layer of gas that extends from about 600 kilometers (373 miles) to 10,000 kilometers (6,214 miles) above the Earth’s surface. The exosphere is so thin that the molecules of gas are able to escape the Earth’s gravity and drift into space.
The stratopause is the boundary between the stratosphere and the mesosphere. It is located at an altitude of about 50 kilometers (31 miles). The stratopause is characterized by a sharp increase in temperature with altitude. The temperature at the stratopause is about -80 degrees Celsius (-112 degrees Fahrenheit). The stratopause is composed mostly of nitrogen and oxygen. The stratopause is the layer of the atmosphere where the ozone layer is located. The ozone layer is a region of the stratosphere that contains high concentrations of ozone. Ozone is a gas that absorbs ultraviolet radiation from the sun. The stratopause is the layer of the atmosphere where the temperature reaches its maximum. The temperature at the stratopause is about -80 degrees Celsius (-112 degrees Fahrenheit). The stratopause is the layer of the atmosphere where the pressure is lowest. The pressure at the stratopause is about 0.01 millibars.

1. The stratopause is located at an altitude of:
   (A) 10 kilometers (6 miles)
   (B) 50 kilometers (31 miles)
   (CC) 100 kilometers (62 miles)
   (D) 200 kilometers (124 miles)

2. The stratopause is characterized by a:
   (A) sharp decrease in temperature with altitude
   (B) sharp increase in temperature with altitude
   (C) gradual decrease in temperature with altitude
   (D) gradual increase in temperature with altitude

3. The stratopause is composed mostly of:
   (A) nitrogen and oxygen
   (B) hydrogen and helium
   (C) ozone
   (D) water vapor

4. The stratopause is the layer of the atmosphere where the:
   (A) ozone layer is located
   (B) ionosphere is located
   (C) thermosphere is located
   (D) exosphere is located

5. The temperature at the stratopause is about:
   (A) -80 degrees Celsius (-112 degrees Fahrenheit)
   (B) -40 degrees Celsius (-40 degrees Fahrenheit)
   (C) 0 degrees Celsius (32 degrees Fahrenheit)
   (D) 40 degrees Celsius (104 degrees Fahrenheit)

6. The pressure at the stratopause is about:
   (A) 0.1 millibars
   (B) 0.01 millibars
   (C) 0.001 millibars
   (D) 0.0001 millibars