Which of the following provides an explanation of landscape gardening?

What is the primary importance of museums in the context of biological studies?

Statement $X$: Zoological parks are established in large cities.
Statement $Y$: To instill love and affection for wildlife in people and to create awareness about conservation.

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

Which one of the following taxonomical aids is used for the identification of plants and animals based on the presence or absence of contrasting characters?

Match the items given in Column $I$ with those in Column $II$ and select the correct option given below:

Column $I$	Column $II$
$(a)$ Herbarium	$(i)$ It is a place having a collection of preserved plants and animals.
$(b)$ Key	$(ii)$ $A$ list that enumerates methodically all the species found in an area with brief description aiding identification.
$(c)$ Museum	$(iii)$ Is a place where dried and pressed plant specimens mounted on sheets are kept.
$(d)$ Catalogue	$(iv)$ $A$ booklet containing a list of characters and their alternates which are helpful in identification of various taxa.