Journey to the End of the Earth Ncert Question and Answer
Reading with Insight Question and Answer
Q1. "The world's geographical history is trapped in Antarctica." How is the study of this region useful to us?
Ans. Present day Antarctica was the center of a huge landmass called Gondwana. It was a giant southern super-continent. It existed about 650 million years ago and thrived for 500 million years. Then it was not cold. Climate was warm. Thousands of species of fauna and flora lived there. But there were no human beings. Then this landmass disintegrated. India broke away and pushed against Asia, and created the Himalayas. South America drifted away to join North America. Indeed Antartica holds the key to the geological history of our world.
It helps to understand the significance of Cordilleran folds and pre-Cambrian granite shields, ozone, and carbon, evolution, and extinction.
Q2. What are Geoff Green's reason for including high school student in 'Student in Ice expedition'?
Ans. Human civilization on earth is only 12000 years old. But during this short period, man has created much confusion here. He has built towns and cities. He had wiped out species to snatch limited resources of this earth for his ever-increasing population. By burning fossil fuels he has created a blanket of carbon dioxide around the world. This is slowly but surely increasing the global temperature. Today climate change is the most hotly debated topic. Geoff Green has included students in his expedition to provide them with inspiring educational opportunities. Students are the policy-makers of tomorrow. This experience is important for them. They are at an age when they are ready to learn and to act. They have the idealism that the old lack.
Q3. " Take care of small things and the big things will take care of themselves". What is the relevance of this statement in the content of the Antarctica environment?
Ans. Phytoplankton is microscopic single-celled grasses. They synthesize organic compounds using the energy of the sun. These very-very tiny grasses sustain the entire food chain in the southern oceans. Scientists tell us that any further depletion of the ozone layer will have a bad effect on the activity of these single-celled plants. In turn, the whole food chain will be disrupted. That will endanger the lives of all sea creatures as well as birds in this region. So, if we take care of the phytoplankton or the ozone layer, everything else will take care of itself.
Q4. Why is Antarctica the place to go to understand the earth's present, past, and future?
Ans. Antarctica is the only place on earth that has not supported the human population. So, it remains almost pure as it used to be millions of years ago. There we can observe how a little change can affect the environment. Besides, half a million-year-old carbon records lie trapped in its layer of ice. So, if we want to study the earth's past, present, and future, Antarctica is the right place.
Check Also- Motivational Quotes For Students
Reading with Insight Question and Answer
Q1. "The world's geographical history is trapped in Antarctica." How is the study of this region useful to us?
Ans. Present day Antarctica was the center of a huge landmass called Gondwana. It was a giant southern super-continent. It existed about 650 million years ago and thrived for 500 million years. Then it was not cold. Climate was warm. Thousands of species of fauna and flora lived there. But there were no human beings. Then this landmass disintegrated. India broke away and pushed against Asia, and created the Himalayas. South America drifted away to join North America. Indeed Antartica holds the key to the geological history of our world.
It helps to understand the significance of Cordilleran folds and pre-Cambrian granite shields, ozone, and carbon, evolution, and extinction.
Q2. What are Geoff Green's reason for including high school student in 'Student in Ice expedition'?
Ans. Human civilization on earth is only 12000 years old. But during this short period, man has created much confusion here. He has built towns and cities. He had wiped out species to snatch limited resources of this earth for his ever-increasing population. By burning fossil fuels he has created a blanket of carbon dioxide around the world. This is slowly but surely increasing the global temperature. Today climate change is the most hotly debated topic. Geoff Green has included students in his expedition to provide them with inspiring educational opportunities. Students are the policy-makers of tomorrow. This experience is important for them. They are at an age when they are ready to learn and to act. They have the idealism that the old lack.
Q3. " Take care of small things and the big things will take care of themselves". What is the relevance of this statement in the content of the Antarctica environment?
Ans. Phytoplankton is microscopic single-celled grasses. They synthesize organic compounds using the energy of the sun. These very-very tiny grasses sustain the entire food chain in the southern oceans. Scientists tell us that any further depletion of the ozone layer will have a bad effect on the activity of these single-celled plants. In turn, the whole food chain will be disrupted. That will endanger the lives of all sea creatures as well as birds in this region. So, if we take care of the phytoplankton or the ozone layer, everything else will take care of itself.
Q4. Why is Antarctica the place to go to understand the earth's present, past, and future?
Ans. Antarctica is the only place on earth that has not supported the human population. So, it remains almost pure as it used to be millions of years ago. There we can observe how a little change can affect the environment. Besides, half a million-year-old carbon records lie trapped in its layer of ice. So, if we want to study the earth's past, present, and future, Antarctica is the right place.
Check Also- Motivational Quotes For Students
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