Admin Which layer of air that surrounds the earth?
Earth’s atmosphere is divided into five main layers : the exosphere, the thermosphere, the mesosphere, the stratosphere and the troposphere. The atmosphere thins out in each higher layer until the gases dissipate in space. Therefore,t he layer of air surrounding the surface of the earth is called the atmosphere .
What is atmosphere short answer?
Atmosphere is the thin layer of air that surrounds the earth. It is made up of various gases such as oxygen, nitrogen, carbon dioxides, dust particles and water vapour. The gravitational force of the earth holds the atmosphere around it. It protects us from harmful rays and scorching heat of the sun.
What is atmosphere long answer?
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth’s gravitational attraction. Without the atmosphere there could be no life on Earth. The atmosphere: keeps the climate on Earth moderate compared to that of other planets.
What makes up the air surrounding the Earth?
The air surrounding Earth is our atmosphere. The atmosphere is bound to Earth by gravity. Dry air contains (by volume) 78% nitrogen, 20.95% oxygen, .9% argon, 0.04% carbon dioxide, and other gasses in small amounts. Water vapor can vary, displacing these, and is typically 1% but can be several percent.
Which is the border between Earths atmosphere and outer space?
The Kármán line, at 100 km (62 mi), or 1.57% of Earth’s radius, is often used as the border between the atmosphere and outer space. Atmospheric effects become noticeable during atmospheric reentry of spacecraft at an altitude of around 120 km (75 mi). Several layers can be distinguished in the atmosphere,…
What does the word atmosphere mean in English?
1 usually in singular The envelope of gases surrounding the earth or another planet. ‘So, trapped in the musty atmosphere of planet earth, they appear clumsy and fragile.’
What kind of atmosphere does the Earth have?
‘The atmosphere of the young Earth was rich in ammonia and methane, and was probably very hot.’ ‘The earth has an atmosphere, and rotates on its axis as it revolves around the sun.’ ‘Sunlight traveling from space into the earth’s atmosphere will undergo a large amount of refraction.’