JOURNEY TO THE END OF THE EARTH.docx - Journey to the end of the Earth Important Questions CBSE Class 12 English 1 Answer each of the following

JOURNEY TO THE END OF THE EARTH.docx - Journey to the end...

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Journey to the end of the Earth Important Questions CBSE Class 12 English 1. Answer each of the following questions in about 30-40 words: Question 1. How do geological phenomena help us to 1 know about the history of mankind? (2000; 2009 Delhi) Answer: It is geological phenomena that help us to know about the history of mankind. Geologists say about 650 million years ago a giant ‘amalgamated’ super continent, Gondwana existed in the South. At that time India and Antarctica were parts of the same landmass. Gondwana had a warm climate and a huge variety of flora and fauna. This supercontinent survived for 500 years till the age of mammals got underway. Question 2. What kind of indications do we get while visiting Antarctica to save Earth? (2004 Delhi) Answer: Tishani Doshi’s entire experience of visiting Antarctica was nothing short of a revelation. It made her wonder about the “beauty of balance in play on our planet”. She hopes the new generation will understand their planet better and save it from annihilation. The planet’s ecosystem and its balance that took millions of years to form can be soon destroyed. Scientists warn that a further depletion in the ozone layer will affect the activities of the phytoplankton. The lives of the marine animals and birds of the region will be affected. But the school students’ visit to the Antarctica may make human beings handle their planet in a better way.
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Question 3. How can a visit to the Antarctica be an enlightening experience? (2008 Outside Delhi; All Comptt. Delhi) Answer: By visiting the Antarctica we can understand the earth’s past, present and future. A visit there can teach the next generation to understand and value our planet. Antarctica also holds within its ice-cores half- million-years old carbon records which will help us to study climatic changes by global warming. Question 4. Why is a visit to Antarctica important to realise the effect of global warming? (2008 Outside Delhi) Answer: Antarctica is the perfect place to study the effects that global warming is causing. It is here that one can see the effect of melting glaciers and collapsing ice-shelves and how this is likely to raise the water levels in the sea and the ocean, as a result of which many low lying regions will be submerged under water.
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Question 5. How is Antarctica a crucial element in the debate on climate change? (2008 Outside Delhi; 2013 Comptt. Outside Delhi) Answer: Antarctica is a crucial element in the debate on climate change because it is the only place in the world which has never sustained a human population and thus remains relatively pristine. Moreover, it holds in its ice-caves half-million- year old carbon records trapped in its layers of ice. The world’s climate is changing fast and is at present one of the most hotly debated issues. Antarctica is the ideal place to study the effect of these environmental changes as it has a very simple ecosystem and lacks biodiversity. If global warming makes Antarctica warmer, it will have disastrous consequences elsewhere.
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  • Fall '17
  • Ms. Sadhna Shukla

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