Yes, this is true!
In the early times of the solar system, when the planets were still being formed there were many impacts. For example, it is thought that the mood is a result of such an impact: another celestial body hit Earth and part of it remains as today's moon. Such impacts are no longer typical.
The mesopause, the temperature minimum that marks the top of the mesosphere, is the coldest place on Earth and has an average temperature around −100 °C (−148.0 °F; 173.1 K). your welcome lols.....
Answer: I would say region
Explanation: The definition for region is an area having definable characteristics but not always fixed boundaries.
You can get an underwater mountain range like the Mid-Atlantic Ridge. Normal faults occur at divergent boundaries.
