Answer:
O fire, flood, farming, and ice ages can affect ecological succession
Step-by-step explanation:
Ecological succession is defined as the process in which ecology or environmental structure changes as the time passes.
Fire, flood, farming, and ice ages are some of the factors that can slow or restart secondary ecological succession because these factors can remove most vegetation and animals unable to flee the affected area.
Hence, the correct answer is "fire, flood, farming, and ice ages can affect ecological succession".