Which of the following papers is used for drying plant specimens?

Assertion $A$: Many new and improved varieties of fruits,vegetables,and flowers can be obtained through research in botanical gardens.
Reason $R$: Processes like grafting,tissue culture,hybridization,cloning,and the development of germplasm banks are carried out in botanical gardens.
Which option is correct for Assertion $A$ and Reason $R$?

Which of the following is an important function of botanical gardens?

Which is the famous herbarium located in the state of Gujarat?

Which of the following types of plants are grown in a botanical garden?

Approximately how many botanical gardens have been registered by the International Association of Botanical Gardens?