Hybrid seeds are created by crossbreeding two or more different plant varieties to produce a new variety with specific desirable traits. Non-hybrid, or open-pollinated, seeds are produced through natural pollination and can be saved and replanted for future generations.

Some common challenges include maintaining seed purity and quality, controlling pests and diseases, ensuring proper storage and transportation conditions, and meeting regulatory requirements.

Some sustainable practices include using organic and natural pest management techniques, conserving water and energy resources, reducing waste and pollution, and supporting biodiversity through crop rotation and cover cropping.

The storage life of seeds varies depending on the type of seed and storage conditions. Generally, seeds can remain viable for several years if stored properly in a cool, dry place.

Yes, it is possible to ship seeds internationally. However, there are often restrictions and regulations that must be followed to ensure compliance with local laws and customs requirements. It is important to check with the appropriate authorities before shipping seeds internationally.