Fact 1: Seed dispersal has a positive impact on a plant.

Fact 2: Seeds are dispersed by the winds and by animals.

Given the two facts above, answer the question "What things have positive impact on plants?" with the following options: 
- pollution
 - wind and animals
 - hormones
 - shockwaves
 - food and shelter
 - organic molecules
 - hydrogen and oxygen
 - granuloma


 

  wind and animals       