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I assume it is because everything works in it's own part
Ozone gas makes one important part of the atmosphere. It protects us from the deadly UV rays.
The most vulnerable part of the Earth's system is the atmosphere. It is compared to varnish on a globe. ( very thin ) ( watch An Inconvenient Truth by Al Gore if you are looking more about global warming. Very helpful.)
Because it's the only part of the solar system which supports life
The part from about one meter into the soil to about 7000 meters into the atmosphere, including all oceans lakes and waterways. The part in which there are living organisms.
The crust.
No, Earth and the other planets and debris are part of the sun's solar system.
earth is considered as a planet because it is a part of solar system
Because it is the innermost part of the planet.
Core
Earth's crust isn't really considered "around" the earth. It's one of the smaller parts with the least depth that's for sure, but it only covers the mantle. So generally speaking the Crust is part of the earth even the atmosphere can be considered part of the earth.
No. The Moon is a separate object from Earth. However, Earth and the moon are sometimes regarded as a single Earth-moon system.
Yes. It is a sub-category of earth science.
I assume it is because everything works in it's own part
ozon layer atmosphere ocean, weather
I assume it is because everything works in it's own part
earths crust includes ocean floors and