1. Wind

Seeds that are small in size and light in weight are dispersed by wind. Cotton, Madar, and dandelion seeds are dispersed by wind. They have fine, long hair around them. So, they are easily carried away by the wind.

SEED dispersal by wind (Source: Shutterstock)

2. Water

Seeds of plants growing in water or NEAR water bodies are dispersed by water. These seeds are light in weight and are able to float in water. The spongy fruit of lotus and fibrous outer covering of coconut make them light. This helps a seed float on water and move long distances.

Dispersal by water (Source: Shutterstock)

3. Animals

Many FRUITS and seeds are spread by animals, BIRDS, and humans. Humans and animals eat fruits and throw away their seeds. These grow into a new plant. SQUIRRELS collect nuts and bury them. When the conditions become favourable, these nuts grow into new plants.

Birds eat fruits sometimes the seeds come out in their droppings undigested. Some seeds get stuck to their beaks while eating fruits. When they rub their beaks, the seeds fall down and later on grow into new plants.