What does the word atmosphere mean?

What does the word atmosphere mean?

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. 3 : a surrounding influence or environment an atmosphere of hostility.

What is atmosphere in simple words?

The atmosphere is the layer of gases around the Earth. It is held in place by Earth’s gravity. It also has plentiful oxygen (20.9%) and small amounts of argon (0.9%), carbon dioxide (~ 0.035%), water vapor, and other gases.

What is the sentence of atmosphere?

1 The spacecraft disintegrated as it entered the Earth’s atmosphere. 2 They lived in an unhealthily claustrophobic atmosphere. 3 I find the atmosphere there rather impersonal. 4 These gases pollute the atmosphere of towns and cities.

What does the atmosphere do for us?

Not only does it contain the oxygen we need to live, but it also protects us from harmful ultraviolet solar radiation. It creates the pressure without which liquid water couldn’t exist on our planet’s surface. And it warms our planet and keeps temperatures habitable for our living Earth.

Why is there no atmosphere in mercury?

Mercury has almost no atmosphere. The planet’s small size means that its gravity is too weak to hold down a normal atmosphere. Mercury’s thin atmosphere is constantly being “blown away” into space by the pressure of sunlight and by the solar wind. Gases are constantly being added to Mercury’s atmosphere, too.

Does Mars have a thick or thin atmosphere?

Its atmosphere is rich in carbon dioxide (over 96%) and it is very dense. The atmosphere of Mars is also rich in carbon dioxide (above 96%), but it is extremely thin (1% of Earth’s atmosphere), very dry and located further away from the Sun. This combination makes the planet an incredibly cold place.

What’s the biggest thing ever?

The biggest supercluster known in the universe is the Hercules-Corona Borealis Great Wall. It was first reported in 2013 and has been studied several times. It’s so big that light takes about 10 billion years to move across the structure. For perspective, the universe is only 13.8 billion years old.

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