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  1. Air | Composition, Oxygen, Nitrogen | Britannica

    May 2, 2025 · 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 …

  2. Trinidad, CO Air Quality Index - AccuWeather

    Localized Air Quality Index and forecast for Trinidad, CO. Track air pollution now to help plan your day and make healthier lifestyle decisions.

  3. Trinidad Air Quality Index (AQI) and USA Air Pollution | IQAir

    Trinidad Air Quality Index (AQI) is now Good. Get real-time, historical and forecast PM2.5 and weather data. Read the air pollution in Trinidad, USA with AirVisual.

  4. 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 …

  5. AIR Definition & Meaning - Merriam-Webster

    The meaning of AIR is the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth; also : the equivalent mix of gases on another celestial object …

  6. Air - National Geographic Society

    Oct 1, 2024 · Air is the invisible mixture of gases that surrounds Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.

  7. What's in the Air? - Center for Science Education

    Air is a mixture of naturally occurring gases and human-made air pollutants. Learn more about these gases and the role they play in our atmosphere.

  8. Air (2023) - IMDb

    Air: Directed by Ben Affleck. With Matt Damon, Jason Bateman, Ben Affleck, Chris Messina. The history of the game-changing partnership between a then undiscovered Michael Jordan and …

  9. AIR | definition in the Cambridge English Dictionary - Cambridge …

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

  10. Air - definition of air by The Free Dictionary

    air - a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of; "air pollution"; "a smell of chemicals in the air"; "open a window and let in some air"; "I need …