Which of the following seeds are dispersed by bursting of fruits

I) Xanthium    II) Castor       III) Maple     IV) Balsam

Concept: Seeds and fruits of plants are dispersed away by wind, water and animals.

The fruits of some seeds are dispersed when they burst with sudden jerks. This causes the seeds to scatter away far from the parent plant. E.g. Castor and Balsam.

Xanthium fruits have hooks which attach to the body of animals or humans and get dispersed.

Maple seeds are winged, and they glide when dispersed by wind.