SCIENCE

• Layers of the Atmosphere


  The five layers of the Earth's atmosphere
• Layers of the Atmosphere

  1. Troposphere

  2. Stratosphere

  3. Mesosphere

  4. Thermosphere

  5. Exosphere
• The five layers of the atmosphere are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere
• The height of each layer of the atmosphere can be estimated
• Temperature and altitude in the troposphere

  Decreasing temperature with increasing altitude
• Temperature and altitude in the stratosphere

  Increasing temperature with increasing altitude
• Temperature and altitude in the mesosphere


  Decreasing temperature with increasing altitude
• Temperature and altitude in the thermosphere

  Increasing temperature with increasing altitude
• Temperature and altitude in the exosphere


  Increasing temperature with increasing altitude
• Atmospheric pressure decreases as altitude increases.
• Atmospheric pressure decreases as we move away from Earth's surface.
• The Earth's atmosphere consists of approximately 78% nitrogen (N2), 21% oxygen (O2), and small amounts of other gases like argon (Ar) and carbon dioxide (CO2).
• The troposphere is the lowest layer of the atmosphere where weather occurs.
• The atmosphere is divided into layers based on their composition, density, and temperature.
• The atmosphere is divided into five layers based on changes in atmospheric properties such as temperature, air density, and composition.
• Air pollution refers to the release of pollutants or contaminants that negatively affect human health and the environment.
• The stratosphere is the second-lowest layer of the atmosphere where ozone is found.
• The stratosphere is the second-lowest layer of the atmosphere where ozone is found.
• Human-made pollution includes emissions from factories, transportation, agriculture, and waste disposal.
• Ozone (O3) is a gas composed of three oxygen atoms.
• Pollution can be caused by natural sources such as volcanic eruptions or wildfires, but most pollution comes from human activities.
• Air pollution has negative impacts on human health, including respiratory problems, cardiovascular disease, and cancer.
• Pollution can be caused by natural sources such as volcanic eruptions or wildfires, but most pollution comes from human activities.
• Air pollution has negative impacts on human health, including respiratory problems, cardiovascular disease, cancer, and premature death.
• Human-made pollution includes emissions from factories, cars, power plants, and agriculture.
• Some common types of air pollution include particulate matter, sulfur oxides, nitrogen oxides, ozone, and greenhouse gases.
• Human activities contribute significantly to air pollution through burning fossil fuels, industrial processes, transportation, agriculture, and waste management.
• The mesosphere is the third-lowest layer of the atmosphere where temperatures decrease rapidly with altitude.
• Natural sources of air pollution include volcanic eruptions, wildfires, dust storms, and natural decay processes.
• Pollution can have negative impacts on ecosystems, including reduced productivity, altered food webs, and increased susceptibility to disease.
• Natural sources of pollution include volcanic eruptions, wildfires, dust storms, and natural decay processes.
• Water pollution occurs when pollutants enter water bodies, causing harm to aquatic life and humans who rely on these resources.
• Volatile organic compounds (VOCs): These are chemicals that easily evaporate into the air at room temperature.
• Water pollution occurs when pollutants enter water bodies, causing harm to aquatic life and posing risks to humans who use the water.
• Stratospheric ozone absorbs ultraviolet radiation from the sun, protecting life on Earth's surface.
• Natural sources include dust storms, forest fires, and volcanoes.
• Sulfur dioxide (SO2) and nitrogen oxides (NOx): These gases contribute to acid rain formation by reacting with moisture in the air.
• Air pollution is caused by human activities such as burning fossil fuels, industrial emissions, transportation, agriculture, and waste management.
• Particulate matter (PM10 and PM2.5): Fine particles suspended in the air that can be breathed into the lungs.
• Particulate matter (PM10 and PM2.5): Fine particles suspended in the air that can be breathed into the lungs.