Question

Give the importance of botanical gardens.

Answer 1

its a collection of different species of flowers 
this is one of the pleasant beauty
This helps to find all species at 2 place.

Answer 2

There are many roles of botanical gardens.

For example, via botanical garden, you can take extra measure to cultivate plants which may be losing in nature and are getting extinct.

On other hand, it also provides living collection of various plants which one can study later on.

On top of that, it could also result in to research and other similar activities.