[I] deadly and devastating.
[II] biological diversity.
[III] Worse effect.
[IV] Negative effect.
[V] population movement.
[VI] Unknown effect.
[VII] Positive effect on survival.
[VIII] resistance activities.

Fact 1: Seed dispersal has a positive impact on a plant. Fact 2: Humans depend on plants and animals for survival. Given the two facts above, what effect does seed dispersal have on humans?
Answer:
[VII]