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.
Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.
From lowest to highest, the major layers are the troposphere, stratosphere, mesosphere, thermosphere and exosphere.
Oct 2, 2019
The atmosphere of Earth, commonly known as air, is the layer of gases retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere.
Ans: Atmosphere is the veil of odourless,tasteless and colourless gases,dust particles and water vapour surrounding the earth which forms a protective boundary between the outer space and the biosphere. It is composed of different gases in different volumes.
The layer of air above the earth is called atmosphere. The air in our atmosphere extends upto 300 kilometres above the surface of Earth. The atmosphere contains a tremendous amount of air. Air has weight so the atmosphere consisting of tremendous amount of air has enormous weight.
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.
Thick envelop of air around the earth is called atmosphere.
huge blanket of air which surrounds the earth is called atmosphere.
The atmosphere also helps to control the temperature of the planet. We would find it hard to surviveMoreThe atmosphere also helps to control the temperature of the planet. We would find it hard to survive without the atmosphere.
The atmosphere. is the layer of gas that surrounds Earth. It is often called air. Other planets, and some of their larger moons, also have atmospheres. The atmosphere consists of several different gases.
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.
The atmosphere layer closest to the earth is referred to as the troposphere. Beyond the troposphere are the stratosphere, the ozone layer, the mesosphere, and the thermosphere. The atmosphere is made up of 78% nitrogen, 21% oxygen, and smaller amounts of argon, carbon dioxide, helium, and neon.
The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun's dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.
Answer: because of gravity as the gravity of earth holds all the gases and do not let them escape.
When Earth formed 4.6 billion years ago from a hot mix of gases and solids, it had almost no atmosphere. The surface was molten. As Earth cooled, an atmosphere formed mainly from gases spewed from volcanoes. It included hydrogen sulfide, methane, and ten to 200 times as much carbon dioxide as today's atmosphere.
The photosphere, chromosphere, and corona are all part of the Sun's atmosphere. (The corona is sometimes casually referred to as “the Sun's atmosphere,” but it is actually the Sun's upper atmosphere.) The Sun's atmosphere is where we see features such as sunspots, coronal holes, and solar flares.
The atmosphere is made up of 78% nitrogen, 21% oxygen, and smaller amounts of argon, carbon dioxide, helium, and neon. Contaminants in the atmosphere can include smoke, toxic gasses, dust, ash from volcanoes, and salt.
10 Fascinating Facts about Earth's Atmosphere
May 10, 2017
Atmosphere is defined as the area of air and gas enveloping objects in space, like stars and planets, or the air around any location. An example of atmosphere is the ozone and other layers which make up the Earth's sky as we see it. An example of atmosphere is the air and gases contained inside a greenhouse.