Question

Abandoned railroad tracks are overgrown with weeds. ten years later there are small aspen trees growing in the middle of the tracks. this change is an example of

Answer 1

Step-by-step explanation:

or secondary succesion

Answer 2

this change is an example of ecological succession
Ecological succession is a process that makes an ecosystem gradually changes overtime, including all organisms that took part in that ecosystem.
Ecological succession could change the dominant player that played a major role in that specific ecosystem.