An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.
What is atmosphere short define?
Definition of atmosphere
1a : the gaseous envelope of a celestial body (such as a planet) b : the whole mass of air surrounding the earth. 2 : the air of a locality the stuffy atmosphere of the waiting room.
What is atmosphere short answer Class 6?
Answer: Atmosphere is a blanket of air surrounding the Earth’s surface. Atmosphere contains oxygen which is essential for animals to breathe and get energy from food.
What is atmosphere short answer Class 3?
Thick envelop of air around the earth is called atmosphere.
What is atmosphere short answer Class 8?
Answer: The thin blanket of air that surrounds the earth is called the Atmosphere. This layer of gases forms a protective boundary between the outer space and the earth’s space. It is the second layer of the earth.
What is atmosphere short answer Class 4?
What is atmosphere short answer Class 4? An atmosphere contains the air that we breathe and is a blanket of gases that surrounds Earth. It is held near the surface of the planet by Earth’s gravitational attraction.
What is atmosphere Class 11?
Answer: The atmosphere is composed of gases, water vapour and dust particles. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km.
What is atmosphere Class 5?
An atmosphere contains the air that we breathe and is a blanket of gases that surrounds Earth. It is held near the surface of the planet by Earth’s gravitational attraction.
Why is it called atmosphere?
An atmosphere (from Ancient Greek ἀτμός (atmós) ‘vapour, steam’, and σφαῖρα (sphaîra) ‘sphere’) is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body. A planet retains an atmosphere when the gravity is great and the temperature of the atmosphere is low.
What is atmosphere 7th class?
(i) What is the atmosphere? Answer: The blanket of air surrounding the earth is called the atmosphere. The atmosphere primarily comprises nitrogen and oxygen in bulk and other gases like carbon dioxide, helium, ozone, etc in lesser quantities. All living beings on earth depend on the atmosphere for their survival.
What is atmosphere and atmosphere layers?
The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. A further region at about 500 km above the Earth’s surface is called the exosphere.
What is atmosphere short answer Class 9?
What is known as atmosphere ? Answer: The blanket of air upto 1500 km surrounding the earth is known as atmosphere.
What is air BYJU’s?
Air is a mixture of nitrogen, oxygen, carbon dioxide, water vapors, and some other gases. It also contains dust particles.By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.
