During a visit to a botanical garden, the teachers showed an old tree which was on the verge of extinction

During a visit to a botanical garden, the teachers showed an old tree which was on the verge of extinction. As soon as the teacher left, some notorius students climbed up the tree and started cutting the branches, collecting its leaves as previous collection. Soumya instead took photographs from various angles. The boys mocked at Soumya, while the teacher appreciated her.
(i) Why should we conserve biodiversity?
(ii) What role is played by botanical garden in the conservation of biodiversity?
(iii) Who besides botanists look after plants in botanical gardens?
(iv) What valge did Soumya possess?

(i) We should conserve biodiversity as it provides us source of food, drugs and medicines, aesthetic, cultural value, etc.
(ii) Botanical gardens play an important role in conservation by growing a wide variety of plants and protecting them.
(iii) It is the gardeners who looks after the plants in botanical gardens besides botanists.
(iv) Respect for nature, care for biodiversity and scientific attitude with a vision for future.