Answer:
D. Separate ecosystems can affect each other.
D phytoplankton i believe
South America has the largest grassland of Earth.<span><span><span /></span></span>
These processes are volcanic eruptions, impact cratering, tectonics, and erosion. Impact cratering may occur due to meteoroids. The eruptions and disruptions caused during these processes lead to the release of many minerals and other components which eventually affect the surface geology of a planet.
