Answer: B
Explanation:
A galaxy is a system of solar systems and other stars. Galaxies, like solar systems, are held together by gravity. In galaxies, the solar systems are separated by vast sections of mostly empty space. The galaxy that contains the Earth and its solar system is called the Milky Way.
Erosion, sinkholes may form, and loss of biodiversity.
Big walker mountain tunnel and generation station
Plz add more deatils im very confusrd i still look forward to helping yoh though
the innermost part of the earth is called the core.
