The atmosphere's composition is caused BY life. When the Earth was formed the atmosphere was Nitrogen, CO2, and Methane and water vapour. Life has removed much of the methane and CO2 and added Oxygen. Therefore life and the atmosphere (and the rocks of the planet) are one big unified system with lots of biological cycles happening with them.
When O2 was added to the atmosphere this formed O3 (Ozone) in the upper atmosphere and this then blocked out most of the Sun's harmful (to life) ultraviolet radiation. When this happened it was possible for life to start colonising the Earth's land areas.
The atmosphere also blocks out most of the harmful cosmic radiation that impinges on the planet.
to protect us from the sun's harmful rays
Bc its cool
They dont they just make the earth hotter
It absorbs radiation to protect it. It protects from UV rays.
The atmosphere helps sustain and protect life on Earth's surface by trapping heat from the sun, moderating temperature extremes, and blocking harmful radiation such as UV rays. It also helps regulate the water cycle by holding water vapor and enabling precipitation, supporting diverse ecosystems and life forms.
it bounce back the UV radiations
Biosphere.
steel, with durible titanuim palting to protect it from breaking up in earths atmosphere
The atmosphere has layers due to variations in temperature and composition at different altitudes. These layers help to protect the Earth by trapping heat, blocking harmful solar radiation, and supporting weather patterns. The main layers of the atmosphere are the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
Green plants evolved adding oxygen to the atmosphere.
why does earhs position in the milky way galaxy help protect life
more oxygen was consumed