Crust protects and serves as the thin outer layer where we live.
Mantle is where hot molten rocks takes place.
Core: is the innermost part of the earth.
The layers of the earth are responsible for the formation of continents.
To protect us from any danger coming to Earth
The atmosphere acts like a multi-layer shield that protects Earth from dangerous solar radiation. ... The stratospheric ozone layer absorbs ultraviolet (UV) radiation, preventing dangerous UV rays from hitting Earth's surface and harming living organisms.
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The ozone layer functions as a shield to protect Earth's surface from the Sun's damaging ultraviolet radiation.
They are interconnected because each layer is compose of mostly the same elements and is just atop of each other