Write notes.

(a) Importance of the environment

(b) Biotechnology

(c) Reserved Biodiversity Zones.

(a) To maintain the biodiversity, the environment plays an important role. For the survival of carnivores in the forest, presence of herbivores is necessary and for the survival of herbivores, plants are necessary. To maintain the nature’s chain producers, decomposers, herbivores and carnivores all have to survive.

(b) Biodiversity is an advanced technology by which genes of local varieties are preserved in the gene bank. These genes are preserved to cross with the new species to get their characteristics such as disease resistance, survival in adverse conditions and shorter life cycles.

(c) Reserved bio diversity zones are the areas where the wildlife is protected but the local people are permitted to carry on with their daily life and work. To protect plants and wild animals which are in danger of extinction, a treaty came into force in 1975. This regulates the import and export of all kinds of wildlife. At the earth summit held at Rio-de-Janeiro in Brazil in 1992, a treaty was adopted to protect and nature biodiversity.