Listen NCERT Audio Books - Kitabein Ab Bolengi
Answer the following questions in about 30 words.
What is biodiversity? Why is biodiversity important for human lives?
Biodiversity means the inherited variation within species, the variety of species and the variety of habitat within a landscape. In other words, it refers to the variety of living organisms.
It is important because every organism has a defined role in the chain. There are organisms which are consumers, producers, and decomposers. They are interdependent for their existence.
For example, if there are no decomposers, then there will a lot of waste which not decompose. This, in turn, will make the topsoil loose its fertility. These decomposers also give a lot of nutrients to the soil. In the absence of these organisms, there will be a loss of fertility. Thus, every single member of the biodiversity is important.
Match the following animals with their category of existence.
Animals/Plants | Category of existence |
Black buck | Extinct |
Asiatic elephant | Rare |
Andaman wild pig | Endangered |
Himalayan brown bear | Vulnerable |
Pink-headed duck | Endemic |
Match the following
Reserved forests | Other forests and wastelands belonging to both government and private individuals and communities. |
Protected forests | Forests are regarded as most valuable as far as the conservation of forest and wildlife resources. |
Unclassed forests | Forest lands are protected from any further depletion. |