NCERT Solutions:- The Vistas book of Class 12th Students has been developed for English Course. We are going to Provide you all important Questions and Answers with pdf of Chapter 3 Journey to the end of the Earth Written by Tishani Doshi.
| Book: | Vistas English |
| Chapter: | Journey to the end of the Earth |
| Writter: | Tishani Doshi |
| Class: | 12th |
| Board: | Cbse |
Journey to the end of the Earth Question and Answer
Question:(1)
How did the author travel to Antarctica ?
Answer : The author travelled to Antarctica on a Russian research vessel’ Akademik Shokalskiy ‘. He travelled over 100 hours in combination of a car, aeroplane and a ship .
Question:(2)
What surprised the author most about Antarctica?
Answer : The author got the knowledge that India and Antarctica were once part of the same landmass . This fact surprised him most about Antarctica as at present the climate of these places is altogether different .
Question:(3)
Why is the average increasing ? average global temperatur increasing?
Answer: The average global temperature is increasing because of depletion in the ozone layer which effects the activities of phytoplankton which in turn affects the global carbon cycle.
Question:(4)
The humans have established dominance ove nature, how?
Answer : Humans have inhabited villages , towns , cities and mega – cities in the process of doing so , they have destroyed forests , mountains and other natural places . They are using natural resources at their will . Thus they have established dominance over nature .
Question:(5)
What was the purpose of the visit to Antarctica?
Answer : Antarctica is the coldest , driest and windiest continent in the world . It was to realise how real was the threat of global warming and depletion of the ozone layer .
Question:(6)
What is increasing temperature?
Answer : Carbon dioxide is a greenhouse gas that traps heat in the atmosphere . The unmitigated burning of fossil fuels has now created a blanket of carbon dioxide around the world , which is slowly the average increasing the average global temperature.
Question:(7)
How do geological phenomena help us to know about the history of humankind?
Answer : There was much warmer in the past . It had variety of flora and fauna . There was no existence of human beings at that time . Fossils buried in the earth give knowledge of huge animals in existence in the past . It was the stage when dinosaurs were wiped out and the age of mammals started .
Question:(8)
What are the indications for the future of humankind ?
Answer : Glaciers are melting and ice – caps are falling . There is a danger of global warming . If that happens , mankind will be wiped out from the global scenario .
Journey to the end of the Earth (Long Answers Type Questions)
Question:(9)
Describe the author’s journey to Antarctica .
Answer : She boards on a research vessel ‘ Akademik Shokalskiy ‘ . The journey begins 13.09 degree north the Equator in Madras . Nine time zones , six check points , three bodies of water and at least three ecospheres are crossed . The vessel heads towards the coldest , driest and windiest continent in the world . The first emotion on facing Antarctica’s expansive white landscape and uninterrupted blue horizon is of relief . It follows up with an immediate and profound wonder .
Question:(10)
In what way have the humans affected global phenomenon?
Answer : Natural resources are limited and human population is growing rapidly . This has left us battling with other species . Thoughtless burning of fossil fuels has created a blanket of carbon dioxide around the world . Ozone layer is depleting . It is increasing average global temperature . Global warming is posing a great danger to the future of the earth . Thus humans have brought the world at the edge of destruction .
Question:(11)
The world’s geological history is trapped in Antarctica ‘ . How is the study of this region useful to us ?
Answer . A giant southern super continent , Gondwana existed roughly around the present – day Antarctica . Humans had not reached there . The climate was warmer . There was a vast variety of plants and animals . For 500 million years Gondwana thrived . Then the dinosaurs were wiped out . The age of mammals began . The landmass was forced to separate into countries . Antarctica and India were the part of the same landmass . India pushed northwards , jamming against Asia and formed the Himalayas . South America drifted off and joined North America . The Drake passage opened . It kept Antarctica very cold and left it desolate , and at the bottom of the land . The visual scale ranged from the microscopic to the mighty . There was 24 – hour summer light . There was complete silence . It was broken occasionally by avalanche or calving ice sheet office sheet . It was a sacred place . Hence the study of this region is useful to us .
Question:(12)
What are Geoff Green’s reasons for including high school students in the Students on Ice expedition ?
Answer : Following are the reasons for including high school students in the Students on Ice expedition by Geoff Green
I.Students on Ice expedition ‘ aims at providing the high school students opportunities that are inspiring in the field of education.
II. These opportunities will help the students foster a new understanding and respect for our planet , Earth .
III. Geoff Green first used to cart famous persons in this compaign but they could give their experience back in a limited way . Hence he preferred high school students instead of those persons .
IV. The students are the future generation . They are policy – makers . They should have a life – changing experience at their age .
V. The high school students are ready to absorb the experience . They will born from this experience .
6. The most important thing is that the students will act accordingly . The expedition was very successful .
Question:(13)
Why is Antarctica the place to go to , to understand the earth’s present , past and future ?
Answer : Antarctica is the only place on earth that has remains almost as pure as it used to be millions of years ago . The world’s geological history is trapped in Antarctica . About 90 per cent of the earth’s total ice is stored here . There are no trees , buildings or other human markers . There we can observe how a little change can effect the environment . If the West Antarctica ice sheet melts entirely and the Gulf Stream ocean current is disrupted , they may lead to the end of the world . Besides , half million – year – old carbon records lie trapped in its layers of ice . So , if we want to study the earth’s past , present and future , Antarctica is the right place to go .
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