How can you preserve them?

Because they are preserved in a jar, and while most strawberries would rot, they last longer and to me, they taste the same.

It means to keep stay united. A good example of this was the American War Between the States also known as the Civil War. The war was fought to keep the states united into one country instead of two...

Preserve means keep, maintain. For example, to "preserve the Union" would mean to keep it from falling apart into independent states.

Well, the word preserve can mean a few things. In general it means to keep something for a long period of time. A preserve can be like an Animal Preserve... a place where animals can go to be safe...

Asparagus spears can be pickled, frozen or canned. Pickling helps the asparagus spears to maintain a consistent, firm texture.