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- The Earth's atmosphere is the layer of gasses around the Earth. It is held in place by Earth's gravity. It is today made up mainly of nitrogen (78.1%). It also has plentiful oxygen (20.9%) and small amounts of argon (0.9%), carbon dioxide (~ 0.035%), water vapor, and other gases.
simple.wikipedia.org/wiki/Atmosphere_of_Earth Atmosphere - Wikipedia
Atmospheres are clouds of gas bound to and engulfing an astronomical focal point of sufficiently dominating mass, adding to its mass, possibly escaping from it or collapsing into it.
Atmosphere of Earth - Simple English Wikipedia, the free …
It is held in place by Earth's gravity. It is today made up mainly of nitrogen (78.1%). It also has plentiful oxygen (20.9%) and small amounts of argon (0.9%), carbon dioxide (~ 0.035%), water …
Greenhouse gas - Wikipedia
Greenhouse gases (GHGs) are the gases in the atmosphere that raise the surface temperature of planets such as the Earth. What distinguishes them from other gases is that they absorb the wavelengths of radiation that a planet …
Air - Simple English Wikipedia, the free encyclopedia
Air is a mixture of many gases and tiny dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has mass and weight, because it is matter. The weight of air creates atmospheric …
Atmosphere - Simple English Wikipedia, the free encyclopedia
An atmosphere is a layer of gases that create an astronomical object, that is held in place by the gravity. [1] A planet has an atmosphere when the gravity is great and the temperature of the …
Air | Composition, Oxygen, Nitrogen | Britannica
Nov 5, 2024 · Air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both space and time. The atmospheric …
Earth’s Atmosphere Composition: Nitrogen, Oxygen, …
From largest to smallest, Earth’s atmosphere composition contains nitrogen, oxygen, argon, CO2 and trace gases. Water vapor is excluded from this total.
What Is the Atmosphere? - Center for Science Education
The atmosphere is a mixture of gases that surrounds the Earth. It helps make life possible by providing us with air to breathe, shielding us from harmful ultraviolet (UV) radiation coming from the Sun, trapping heat to warm the planet, and …
Atmosphere - Education | National Geographic Society
Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in atmospheric layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique …
Gas - Wikipedia
Gas is one of the four fundamental states of matter. The others are solid, liquid, and plasma. [1] A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or …
What Is... Earth's Atmosphere? - NASA
May 13, 2024 · That is essentially what the Earth’s atmosphere is like: layers upon layers of gas surrounding the Earth, working to protect the planet. We asked Rei Ueyama , an atmospheric …
The Atmosphere | National Oceanic and Atmospheric Administration
Jul 2, 2024 · Introduction to the Atmosphere The atmosphere is a layer of gas and suspended solids extending from the Earth's surface up many thousands of miles, becoming increasingly …
Atmosphere | Definition, Layers, & Facts | Britannica
Nov 15, 2024 · atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice -covered surface of a planet outward into space.
Carbon dioxide - Wikipedia
Carbon dioxide is a chemical compound with the chemical formula CO 2.It is made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It …
Atmospheric chemistry - Wikipedia
Atmospheric chemistry is a multidisciplinary field with wide-ranging applications that influence environmental policy, human health, technology development, and climate science. Examples …
Earth’s atmosphere - Met Office
Air is made up of a mixture of different gases. The principal constituents of Earth’s atmosphere are: As well as these, there are various trace gases at relatively low concentrations measured...
What is the greenhouse effect? - NASA Science
Greenhouse gases are part of Earth's atmosphere. This is why Earth is often called the 'Goldilocks' planet – its conditions are just right, not too hot or too cold, allowing life to thrive. …
Atmospheric carbon cycle - Wikipedia
The atmospheric carbon cycle accounts for the exchange of gaseous carbon compounds, primarily carbon dioxide (CO 2), between Earth's atmosphere, the oceans, and the terrestrial …
Noble gas - Wikipedia
The noble gases have also been referred to as inert gases, but this label is deprecated as many noble gas compounds are now known. [6] Rare gases is another term that was used, [7] but …
Standard temperature and pressure - Wikipedia
The molar volume of gases around STP and at atmospheric pressure can be calculated with an accuracy that is usually sufficient by using the ideal gas law. The molar volume of any ideal …
Methane - Wikipedia
Methane (US: / ˈ m ɛ θ eɪ n / METH-ayn, UK: / ˈ m iː θ eɪ n / MEE-thayn) is a chemical compound with the chemical formula CH 4 (one carbon atom bonded to four hydrogen atoms). It is a …
Greenhouse gas emissions - Wikipedia
Greenhouse gas emissions per person in the highest-emitting countries. [1] Areas of rectangles represent total emissions for each country. Greenhouse gas (GHG) emissions from human …
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