In this lesson, we’ll discover the meanings and distinctions between the confused words: “Atmosphere” and “Stratosphere.” Both terms are related to the Earth’s gaseous layers, but they represent different parts of the atmosphere. Understanding these differences helps in comprehending the Earth’s atmospheric composition and its various layers.
Word 1: Atmosphere
Definition:
The ”atmosphere” refers to the layer of gases surrounding the Earth, primarily composed of nitrogen, oxygen, argon, carbon dioxide, and other trace gases.
Examples of Use:
“The atmosphere plays a crucial role in sustaining life on Earth by regulating temperature, providing oxygen for respiration, and protecting against harmful solar radiation.”
“Weather phenomena, such as clouds, rain, and wind, occur within the Earth’s atmosphere.”
“Scientists study the atmosphere to understand climate change, air quality, and atmospheric dynamics.”
Word 2: Stratosphere
Definition:
The ”stratosphere” is the second major layer of the Earth’s atmosphere, located above the troposphere and below the mesosphere, extending from approximately 7 to 50 kilometers (4 to 31 miles) above sea level.
Examples of Use:
“The stratosphere contains the ozone layer, which absorbs and filters out a significant portion of the Sun’s ultraviolet radiation.”
“Commercial airliners often fly within the stratosphere to avoid turbulence and adverse weather conditions present in the lower troposphere.”
“The temperature in the stratosphere increases with altitude due to the absorption of ultraviolet radiation by ozone molecules.”
In conclusion, while both “Atmosphere” and “Stratosphere” refer to layers of gases surrounding the Earth, they represent different parts of the Earth’s atmospheric structure. The atmosphere encompasses the entire gaseous layer surrounding the Earth, while the stratosphere specifically refers to the layer located above the troposphere and below the mesosphere. Understanding these distinctions is essential for comprehending the Earth’s atmospheric composition and its role in supporting life on the planet.
