Class 12 English Vistas Chapter 3 Journey to the End of the Earth NCERT Solutions 2026 PDF Download

Ans: Geological phenomena act as a history book for the Earth. By studying landmasses like Antarctica, we learn about the supercontinent Gondwana that existed 650 million years ago. It helps us understand how the continents drifted apart (India pushing against Asia to form the Himalayas, South America joining North America). This geological history explains the evolution of the human race, the extinction of dinosaurs, and the climatic changes that have shaped our current world.

Ans: The indications are grim. Human civilization has created a "racket" on Earth in a short time, leading to population explosion and limited resources. Burning fossil fuels has created a blanket of carbon dioxide, increasing global temperatures. In Antarctica, the retreating glaciers and collapsing ice shelves are visible warnings. If the West Antarctic ice sheet melts entirely, it could lead to catastrophic global sea-level rises, threatening the very existence of humankind.

Ans: The program aims to take high school students to the ends of the world (Antarctica) to provide them with inspiring educational opportunities. The goal is to foster a new understanding and respect for the planet. By witnessing the ecological dangers firsthand, these young students—who are the future policy-makers—are more likely to act and absorb the information needed to save the Earth.

Ans:

• Past: It holds half-million-year-old carbon records trapped in its ice layers, revealing the Earth's geological history (Gondwana).
• Present: It is the only place on Earth that has never sustained a human population and remains relatively pristine, allowing us to see the direct effects of global warming.
• Future: It serves as a warning system; melting ice and affecting phytoplankton warn us of future ecological disasters.

Ans: Her initial emotion was relief, followed by "profound wonder." She was amazed by its immensity, its isolation, and the fact that India and Antarctica were once part of the same landmass.

Ans: Geoff Green was a Canadian explorer and educator who started the 'Students on Ice' program. He got tired of taking rich celebrities and curiosity seekers to Antarctica, who gave nothing back to the earth in return.

Ans: The Drake Passage was created when Antarctica separated from South America, allowing the cold circumpolar current to flow around it. This kept Antarctica frigid, desolate, and at the bottom of the world.

Ans: In Antarctica, the sun doesn't set during the austral summer (24-hour austral light), and there are no human markers like billboards, trees, or buildings. This visual scale makes days merge into weeks, causing time to feel suspended.

Ans: This refers to the microscopic phytoplankton. If the ozone layer is depleted, it affects these tiny plants. Since they are the base of the entire Southern Ocean food web, their destruction would collapse the entire ecosystem (birds, marine life, and global carbon cycle).

Ans: The ship got stuck in thick ice. The captain ordered everyone to climb down the gangplank and walk on the frozen ocean. Underneath the 1-meter thick ice was 180 meters of living, breathing salt water.

Ans: The journey involved crossing nine time zones, six checkpoints, three bodies of water, and at least as many ecospheres. It took over 100 hours of travel by car, aeroplane, and ship.

Ans: After the dinosaurs were wiped out, the age of mammals got underway. This coincided with the separation of the landmasses into the current countries.

Ans: Antarctica was once the center of the supercontinent Gondwana. It had a warmer climate and diverse flora and fauna. When the landmasses separated, Antarctica moved south and froze. Today, its ice cores hold half-million-year-old carbon records. By studying its folds and ice, we can understand the Earth's evolution, the separation of continents, and climatic cycles, effectively reading the Earth's history book.

Ans: It is successful because it targets high school students who are at an impressionable age. Unlike wealthy tourists, these students are ready to absorb, learn, and act. Seeing glaciers retreat with their own eyes creates a powerful, life-changing impact, making them realize that the threat of global warming is real. They are the future generation who can actually make policy changes.

Ans: Humans have dominated the Earth for only 12,000 years, yet have created megacities, overpopulation, and pollution, battling nature for resources. In contrast, Antarctica remains pristine with no human population. It has no trees, billboards, or buildings. It is the only place that preserves the Earth's original state, highlighting how destructive human civilization has been elsewhere.

Ans: This is a Simile. The author compares the vast, white, featureless landscape of Antarctica to the inside of a white ping-pong ball. It emphasizes the lack of perspective and the overwhelming whiteness (whiteout) where you lose the sense of direction.

Ans: Literally, it refers to the physical cold of Antarctica (circulatory and metabolic functions slow down). Metaphorically, it refers to the terrifying realization (prospect) that if the ice melts, it will spell doom for the entire planet.

Ans: The key to the environmental "game" is the simple lesson of the phytoplankton: take care of the small things (microscopic level), and the big things (global climate/survival) will take care of themselves.

Ans: She concludes with a mix of optimism and doubt. After seeing the seals basking in the sun (like stray dogs under a banyan tree), she wonders if the ice will melt entirely. However, she holds onto the hope represented by the energetic teenagers (Students on Ice) who have the idealism to save the world.