definition of air - EAS

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  1. Essential Meaning of air 1 : the invisible mixture of gases (such as nitrogen and oxygen) that surrounds the Earth and that people and animals breathe These laws are meant to produce cleaner air. A delicious smell filled the air.
    www.merriam-webster.com/dictionary/air
    www.merriam-webster.com/dictionary/air
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  2. Mọi người cũng hỏi
    What do you mean by air?
    Kids Definition of air (Entry 1 of 2) 1 : the invisible mixture of odorless tasteless gases that surrounds the earth
    www.merriam-webster.com/dictionary/air
    What is an example of air?
    Speaking scientifically, the word air refers to an invisible mixture of gases, including oxygen, nitrogen, and small amounts of many other gases. You are breathing air into your lungs right now as you read these words. Real-life example: We are all surrounded by air.
    www.dictionary.com/browse/air
    What is air pollution?
    Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects the plants, animals, and humans drastically. There is a certain percentage of gases present in the atmosphere. An increase or decrease in the composition of these gases is harmful to survival.
    byjus.com/biology/air-pollution-control/
    What is the color of air?
    Air is the general name for the mixture of gases that makes up the Earth's atmosphere. On the Earth, this gas is primarily nitrogen (78 percent), with oxygen (21 percent), water vapor (variable), argon (0.9 percent), carbon dioxide (0.04 percent), and many trace gases. Pure air has no discernible scent and no color.
    www.thoughtco.com/definition-of-air-in-science-604751
  3. Từ điển

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    air
    [ɛː]
    DANH TỪ
    air (danh từ) · airs (danh từ số nhiều)
    1. the invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
    2. an impression of a quality or manner given by someone or something.
      "she answered with a faint air of boredom" ·
      "he leaned over with a confidential air"
      từ đồng nghĩa:
    3. music
      a tune or short melodious song.
      "traditional Scottish airs sung in the Gaelic tongue"
      từ đồng nghĩa:
      tune · melody · song · theme · strain · refrain · piece · aria · lay
    4. a jump off the ground on a snowboard or skateboard.
    ĐỘNG TỪ
    air (động từ) · airs (thời hiện tại ngôi thứ ba) · aired (thì quá khứ) · aired (quá khứ phân từ) · airing (hiện tại phân từ)
    1. express (an opinion or grievance) publicly.
      "a meeting in which long-standing grievances were aired"
    2. BRITISH
      expose (a room) to the open air in order to ventilate it.
      "the window sashes were lifted regularly to air the room"
      từ đồng nghĩa:
      • warm (washed laundry) to remove dampness.
        "I was airing the sheets"
      • archaic
        (air oneself)
        go out in the fresh air.
        "to go and air myself in my native fields"
    GỐC
    Middle English (in air): from Old French air, from Latin aer, from Greek aēr, denoting the gas. air is from French air, probably from Old French aire ‘site, disposition’, from Latin ager, agr- ‘field’ (influenced by sense 1). air comes from Italian aria (see aria).
  4. Air Definition & Meaning - Merriam-Webster

    https://www.merriam-webster.com/dictionary/air

    Full Definition of air (Entry 1 of 2) 1 a : the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth also : the equivalent mix of gases on another planet … the thin, frigid air of Mars.

  5. Air Definition & Meaning | Dictionary.com

    https://www.dictionary.com/browse/air

    Air is the invisible mixture of gases that makes up the Earth’s atmosphere. This is what we mean when we talk about the air that we breathe. The word air is also used to refer to the appearance of something, as in an air of mystery. Air is used as a verb meaning to expose something to air, the public, or on a broadcast.

  6. Air Definition in Science - ThoughtCo

    https://www.thoughtco.com/definition-of-air-in-science-604751

    27/08/2010 · Modern Air Definition. Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases. Pure air has no discernible scent and no color.

    • Nghề nghiệp: Chemistry Expert
    • Thời gian đọc ước tính: 2 phút
  7. what is the definition of air - Lisbdnet.com

    https://lisbdnet.com/what-is-the-definition-of-air

    The definition of air is the mixture of oxygen, nitrogen and other gasses that are consistently present around us. A cool breeze is an example of air. An atmospheric movement; a breeze or wind. Where does the air come from? Volcanoes bubbled and released gases from the Earth’s interior for millions of years. The dominant gases released ...

  8. Air Lesson for Kids: Definition, Properties & Facts ...

    https://study.com/academy/lesson/air-lesson-for...

    03/01/2022 · Air is a tasteless, odorless and invisible mix of gases that is primarily made up of oxygen and nitrogen. There are layers of air that cover the earth, which is …

  9. AIR | meaning in the Cambridge English Dictionary

    https://dictionary.cambridge.org/dictionary/english/air

    air definition: 1. the mixture of gases that surrounds the earth and that we breathe: 2. the space above the…. Learn more.

  10. Air Pollution - Definition, Causes, Effects And Control

    https://byjus.com/biology/air-pollution-control

    26/01/2022 · Air pollution refers to any physical, chemical or biological change in the air. It is the contamination of air by harmful gases, dust and smoke which affects plants, animals and humans drastically. There is a certain percentage of gases present in the atmosphere. An increase or decrease in the composition of these gases is harmful to survival.

    • Thời gian đọc ước tính: 6 phút
    • What Is Air Pollution | Environmental Pollution Centers

      https://www.environmentalpollutioncenters.org/air

      Definition. Air pollution can be defined as the presence of toxic chemicals or compounds (including those of biological origin) in the air, at levels that pose a health risk. In an even broader sense, air pollution means the presence of chemicals or compounds in the air which are usually not present and which lower the quality of the air or cause detrimental changes to the …

    • Airborne Definition & Meaning - Merriam-Webster

      https://www.merriam-webster.com/dictionary/airborne

      1: done or being in the air : being off the ground: such as a : carried through the air (as by an aircraft) b : supported especially by aerodynamic forces or propelled through the air by force a plane becoming airborne



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