Delta can also be an easy answer plus it is easy to remember
The answer is; D.
This can be called a secondary ecological succession because it includes the disruption of the former ecology, rather than the ecological succession from a new environment-primary succession. The invasive species outcompete the native species in their environment. In addition, the invasive species lack a natural predator hence spread unregulated in the environment.
Answer:
C. Outer Core
Explanation:
a good thing to remember is that the inner core is solid and the outer core is liquid
