Answer:
El S.I.G es el libro que contiene diferentes tipos de informacion!
Explanation:
The appalachian mountains.
there isnt really any explanation it just is the appalachian mountains.
Different perceptions of a region can make that region less defined is true im not a 100% sure tho
Answer:
Hydrosphere: all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
Biosphere: the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
Geosphere: any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
Atmosphere: the envelope of gases surrounding the earth or another planet.
I don't know if that will help but hopefully it does
Explanation: