Atmosphere Density Overview
Atmospheric density refers to the mass of air per unit volume. It is highest at sea level and decreases significantly as altitude increases because the air becomes thinner.
Layer Density Comparison
The Earth's atmosphere is divided into layers, each with distinct characteristics, including density:
- Stratosphere: Located above the troposphere, its density continues to decrease with altitude, though less rapidly than in the troposphere.
- Mesosphere: Situated above the stratosphere, the density continues to decrease significantly. It's colder here, contributing to lower density.
- Ionosphere: This layer is primarily characterized by ionization and overlaps with the Mesosphere and Thermosphere. While very thin, it's not necessarily the layer with the absolute lowest density compared to the outermost layer.
- Exosphere: This is the outermost layer of Earth's atmosphere, representing the transition to outer space. Here, atmospheric density is extremely low. Air molecules are so sparse that they rarely collide and can escape Earth's gravity.
Therefore, the Exosphere has the lowest density among the given options because it is the highest and thinnest layer.
Similar Questions
- Which of the following represents the correct order of occurrence of the layers of the atmosphere, starting from the surface of the earth?
- Which of the following statements is correct regarding the Aurora Borealis?
- Which of the following statements is CORRECT about El Nino?
- Which of the following gases makes up 78% of our atmosphere and also a part of many molecules essential to life?
- What do we call the force which affects the direction of wind and is caused by the rotation of the earth on its axis?
- The word 'monsoon' is derived from the ________ word 'mausim' which means 'season'.
- From which language is the word 'El-Nino' derived?
- The word 'Mausim' (referring to 'monsoon') comes from which of the following languages?
'Fani' was a type of:
- Which term is used for the tropical cyclone that originates in the north eastern Pacific and north Atlantic?
Important Questions from Climatology
Consider the following statements about anticyclones :
1. Anticyclones are high pressure systems.
2. Air in the centre of the system must be subsiding.
3. Anticyclones are characterized by converging winds.
How many of the above statements is/are correct?
- Snow, sleet and hail are the forms of
- Nisarga, Gati, Nivar, Tauktae and Yaas are names of
Which one of the following is the correct sequence of layers as we move from the Earth’s surface upwards?
Which one of the following is a cold local wind?
