Which of these events is an example of a secondary disturbance in an
ecosystem?

A secondary ecological disturbance will be the one which will indirectly affect the ecosystem

The forest fire is the example of secondary disturbance because of the fact that initially the forest will affect a small region or small number of tree species but may spread to the large region.

Explanation:

I majored in Biology

slitherio is the original. its the best friend of all middle schoolers. the man you can count any time you have some free time. slitherio is the guy you hang with while you're in the computer lab suppose to be doing "research or whatever". slitherio isn't just a game but a friend.

wormaxio is just a fake trying to squeeze its way into the friend group. trying to pretend its cool and your best pal but how long has it really been there for you, really. it only wants you as friend to boost its social status. wormaxio is just annoying fake pleb. no offense

you and have a wonderful day

it would be c. xylem.