They are both circles or sphere
Answer:
They modified the environment by taking old technology to new technology by old technology I mean tools and ways to travel and stuff like that hope this helps:> :)
Answer:
The magma moves upward and erupts to form either an oceanic ridge or a hot spot volcano. At subduction zones, volatile compounds (especially water) escape from the subducting plate and lower the melting temperature of the overlying mantle rocks. This triggers melting and magma forms as a result.
Explanation:
Well it's the core, like a core of an apple. The center part.
