Question

D. Answer the following questions in brief. 1.How have 'urbanisation and industrialisation' led to a large scale deforestation? 2.A new species X is introduced in a forest. How is it likely to affect the lo cal species of the area? 3. What is a Biosphere Reserve? Name two biosphere reserves in India. 4. How does the 'Red data book' help in protecting biodiversity? 5.Why do some birds and animals migrate? 6.How do birds 'get helped' in navigation while undertaking long distance flights? 7. Distinguish between a National Park and a Wildlife Sanctuary. ​

Answer 1

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Answer 2

Answer:

1)As the population grew, so did the requirement for building more space to live in and thus, more houses. For houses to be made land had to be made available by cutting forests. ... This led to industrialisation and urbanisation.

2)It is likely to affect the local species of the area by competing with them for food, home and for his/her living area.

3)Biosphere reserves are 'learning places for sustainable development'. ... Each site promotes solutions reconciling the conservation of biodiversity with its sustainable use. Biosphere reserves are nominated by national governments and remain under the sovereign jurisdiction of the states where they are located((.Nilgiri Biosphere Reserve)) ((Gulf of Mannar Biosphere Reserve))

5)Migration is a process through which animals move from one environment to another for breeding, searching of foods etc. Birds mainly migrate for breeding or in search of food due to environmental factors like weather, season etc. Animals migrate in search for suitable shelter, food and suitable place for breeding.

6)birds get help in navigation while long distance migration with the help of magnetic compass which is a tiny mass of tissue located between their eyes and brain.

7)National park is a protected territory that is formed by the governing bodies to preserve wildlife and evolve them. Wildlife sanctuary is natural habitat that is run by the governing bodies or private organizations that protects certain species of animals and birds.