NCERT Solutions For Class 11 English Hornbill The Ailing Planet: the Green Movement's Role
NCERT Solutions Class 11 English Hornbill The Ailing Planet: the Green Movement's Role
NCERT Solutions For Class 11 English Hornbill The Ailing Planet: the Green Movement's Role is designed and prepared by the best teachers across India. All the important topics are covered in the exercises and each answer comes with a detailed explanation to help students understand concepts better. These NCERT solutions play a crucial role in your preparation for all exams conducted by the CBSE, including the JEE.
NCERT TEXTBOOK QUESTIONS SOLVED
1. Which movement does Nani Palkhivala refer to? How popular do you think it is?Ans. The author, Nani Palkhivala, refers to the 'Green Movement'. It has become very ' popular among the people of all countries. It started nearly twenty five years ago but it has gripped the imagination of the entire human race completely and quite rapidly.
2. How does the author point out the importance of Green Movement?Ans. The author points out the importance of the Green Movement by comparing it to the revolutionary ideas of Copernicus. He had taught mankind in the 16th century that the earth and the other planets revolved round the sun.
3. How have human beings shifted their perceptions?Ans. We have shifted our perceptions from mechanistic view to a holistic and ecological view. Now we regard the earth as a living organism. It is an enormous being and we are its parts. It has its own metabolic needs and vital processes. We must respect and preserve them.
4. What is the state of earth today? How should we act now?Ans. The signs of the earth which are connected with life show that the earth is a patient in declining health. We must realize our moral obligations to be good stewards of the planet. We must act as responsible trustees of the legacy of future generations.
5. How has the concept of sustainable development been defined?Ans. Sustainable development has been defined as the development that meets the needs of the present without putting in danger the ability of future generations to meet their needs. In other words, the present generation would not deprive the natural world of the resources the future generations would need.
6. Who is 'the world's most dangerous animal'? What has he learnt?Ans. Man is the most dangerous animal of the world. He has learnt a new awareness. He has acted wisely. He has shifted from the system of domination to one based on partnership.
Ans. Scientists have arranged a list of about 1.4 million living species. The number of unlisted species is much more. It varies from three to a hundred million according to various estimates. These still remain unknown and unidentified.
8. What do you know about the earth's biological systems and their functions?Ans. The earth has four principal biological systems. These are: fisheries, forests, grasslands and croplands. They form the basis of the world's economic system. They supply us food and raw materials for industry.
9. What is the state of earth's biological systems now and why?Ans. In many areas of the world, earth's biological systems have reached an unsustainable level. They have reached a point where their productivity has been damaged. This is because of the excessive pressure exerted by man on them.
10. How do the earth's biological systems behave on reaching an unsustainable level?Ans. The productivity of the earth's biological systems is impaired on reaching an unsustainable level. Fisheries collapse. Forests disappear. Grasslands turn into barren wastelands. Croplands become worse.
11. How can over-fishing and decimation of forests prove harmful?Ans. Over-fishing may lead to stripping the fisheries. Then man will lose a rich source of protein. The decimation of forests will harm ecology. Moreover, several species of life that live in forest will face extinction.
12. How do Indians procure fuel for cooking? What is the result of their action?Ans. Indians collect fire wood from forests. Sometimes even green trees are cut to obtain fuel. Destruction of forests is harmful to environment and wildlife. They also bum dung as fuel. Burning dung deprives the soil of an important natural fertiliser.
13. Why do we need to plant more forests in India?Ans. According to official data, India is losing its forests at the rate of 3.7 million acres a year. The actual loss of forests is estimated to be about eight times the rate indicated by government statistics. Large areas, officially named forest land are already treeless. Moreover a five-fold increase in the rate of forest planting is needed to cope with the expected fuel wood demand 5 years later.
14. How is the world population increasing over the years?Ans. The world population is increasing at a rapid rate now-a-days. Every four days the world population increases by one million. The world population was about one billion in 1800. By 1900 another billion was added. However in the next 100 years 3.7 billion more were added. This clearly indicates the pace of the growth of world population.
15. Why is population control essential in India?Ans. The population of India was estimated to be 920 million in 1994. Overpopulation upsets all plans of development and causes poverty and unemployment. So either population is controlled or people would remain poor forever. Voluntary family planning helps population control in India.