Earth's atmosphere is divided into five main layers: troposphere, stratosphere, mesosphere, thermosphere, and exosphere, each with unique characteristics and heights.
Primarily composed of nitrogen (78%) and oxygen (21%), with trace amounts of argon, carbon dioxide, and water vapor. Greenhouse gases like carbon dioxide and methane trap heat, contributing to global warming.
Greenhouse gases, including water vapor, carbon dioxide, and methane, act like a blanket, trapping heat and causing the Earth's temperature to rise, leading to climate change.
Ozone, made of three oxygen molecules, is crucial for filtering harmful UV radiation from the sun. Its depletion poses risks like skin cancer, damage to plants and animals, and vision impairment.
Temperature changes with altitude vary across the atmosphere. While the troposphere gets colder as you ascend, the stratosphere warms due to ozone absorption. The mesosphere is extremely cold, and the thermosphere's temperature rises with altitude.
The atmosphere supports life on Earth, maintaining a delicate balance of gases essential for survival. Human activities, such as pollution, contribute to climate change and ozone depletion, threatening this balance.
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