1The dispersal of seeds by wind and water is crucial for the survival of many plant species.
2What are the main factors influencing the dispersal of animals in the wild?
3The dispersal of pollutants in the atmosphere can have serious effects on human health and the environment.
4If we can control the dispersal of invasive species, we may be able to protect native ecosystems.
5The dispersal of people from rural areas to cities is a common phenomenon in many developing countries.