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  1. Troposphere - Wikipedia

    The troposphere is the lowest layer of the atmosphere of Earth. Pronounced / ˈtrɒpəsfɪərˌ - poʊ -/, [1] the name comes from Ancient Greek τρόπος (trópos) 'turning, change' and - sphere. It …

  2. The Troposphere - Center for Science Education

    The troposphere is the lowest layer of Earth's atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and …

  3. Atmosphere - Weather, Air Pollution, Climate | Britannica

    5 days ago · Atmosphere - Weather, Air Pollution, Climate: The lowest portion of the atmosphere is the troposphere, a layer where temperature generally decreases with height.

  4. Troposphere Definition - Intro to Climate Science Key Term

    The troposphere is the lowest layer of Earth's atmosphere, extending from the surface up to about 8 to 15 kilometers (5 to 9 miles) high, depending on latitude and weather conditions.

  5. Troposphere | NASA Space Place – NASA Science for Kids

    Jun 28, 2019 · What is the troposphere? The troposphere is the innermost layer of Earth’s atmosphere. Closest to the surface of Earth, we have the troposphere. “Tropos” means …

  6. Troposphere | Research Starters - EBSCO

    The troposphere is the lowest layer of Earth's atmosphere, extending from the surface to altitudes of approximately 10-16 kilometers, with its height varying by latitude. This layer contains over …

  7. What Is the Troposphere? - Earth How

    The troposphere is the lowest layer of the atmosphere. It starts at ground level and extends upwards to about 13 km. All weather occurs in the troposphere.

  8. Layers of the Atmosphere: From Troposphere to Exosphere

    Sep 8, 2025 · The troposphere is the atmospheric layer closest to Earth’s surface and the one we experience every day. It extends to about 18 kilometers at the equator, though it’s lower at the …

  9. Troposphere - Simple English Wikipedia, the free encyclopedia

    It extents up to 20 kilometers above the earth’s surface. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapor and aerosols. This layer is rich in oxygen. The …

  10. Flexi answers - What is in the troposphere? | CK-12 Foundation

    The troposphere is the lowest layer of Earth's atmosphere, and it's where we live and breathe! Here's what you'll find in the troposphere: Air: It's mostly made up of nitrogen (about 78%) and …