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Would you describe the atmosphere?
An atmosphere is the layers of gases surrounding a planet or other celestial body. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.
Which answer best describes Earth’s atmosphere?
Which answer best describes Earth’s atmosphere? Mostly Nitrogen with about 21% oxygen.
Do you describe the early Earth’s atmosphere?
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.
What are 3 facts about Earth’s atmosphere?
10 Fascinating Facts about Earth’s Atmosphere
- #1. Earth Has Had Three Atmospheres.
- #2. Oxygen Caused the First Major Extinction.
- #3. Global Warming Was Once Much Greater.
- #4. The Sky Should Be Violet.
- #5. The Atmosphere Extends 6,200 Miles into Space.
- #6. Oxygen Levels Used to Be Much Higher.
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 in simple words?
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.
What is atmosphere in Earth science?
An atmosphere is the layers of gases surrounding a planet or other celestial body. The atmosphere protects life on earth by shielding it from incoming ultraviolet (UV) radiation, keeping the planet warm through insulation, and preventing extremes between day and night temperatures.
Which best describes how the Earth’s atmosphere is heated?
Answer: The sun heats earth’s atmosphere unevenly. this causes convection currents to move in large circles in the atmosphere.
What if Earth had no atmosphere?
If there were no atmosphere around the earth, the temperature would get affected. In the absence of atmosphere, there would be no life, no rains, no winds, no fires and also no ozone layer that would be used as a protection layer against harmful radiations.
Why does the Earth have an atmosphere?
Our atmosphere protects the Earth from the harsh rays of the sun and reduces temperature extremes, acting like a duvet wrapped around the planet. Mars and Venus have atmospheres, but they cannot support life (or, at least, not Earth-like life), because they don’t have enough oxygen.
How do you describe the atmosphere for kids?
The atmosphere is the air that plants and animals breathe to survive. The atmosphere is made up of mostly nitrogen (78%) and oxygen (21%). There are lots of other gases that are part of the atmosphere, but in much smaller amounts. These include argon, carbon dioxide, neon, helium, hydrogen, and more.
What are 5 facts about atmosphere?
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. Contaminants in the atmosphere can include smoke, toxic gasses, dust, ash from volcanoes, and salt.