B. hydrosphere
Why? The hydrosphere contains all the waters on the earth's surface, including atmospheric moisture, such as clouds.
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The sun rotates faster at its equator.
Answer:
landslide
This is so easy you can answer this if you study and cheat on class
It makes sure they are in perfect condition for it to go through the cell cycle easier
Index fossils (also known as guide
fossils, indicator fossils or zone
fossils) are fossils used to define
and identify geologic periods (or
faunal stages).