NCERT Solutions
for Class 12 English Vistas
Chapter 3 Journey to the End of the Earth by Tishani Doshi
Updated
Syllabus for 2024-2025 Exams
Q.1. How do geological phenomena help us to
know about the history of humankind?
Answer:
Geological phenomena, such as the formation of continents and the movement of
tectonic plates, help us understand the history of humankind by revealing how
the Earth has changed over millions of years. The existence of Gondwana, a
supercontinent that included India and Antarctica, shows how landmasses were
once connected before drifting apart. Studying these shifts allows scientists
to understand how the Earth’s surface evolved, affecting the development of
life, climates, and ecosystems, which ultimately shaped human history.
Q.2. What are the indications for the
future of humankind?
Answer:
The future of humankind faces uncertainty due to the impact of human activities
on the environment, particularly climate change. The melting of polar ice caps,
the depletion of the ozone layer, and the increase in global temperatures are
serious indicators of ecological imbalance. If the trends of burning fossil
fuels and deforestation continue, there could be catastrophic consequences for
life on Earth, such as rising sea levels, disrupted ecosystems, and extreme
weather patterns, threatening human survival.
Reading with
Insight:
Q.1. ‘The world’s geological history is
trapped in Antarctica.’ How is the study of this region useful to us?
Answer:
Antarctica holds key evidence about the Earth’s geological history in its ice
cores, which contain records of carbon and climate changes dating back millions
of years. By studying these ice cores, scientists can understand past climate
patterns, the effects of global warming, and the impact of human activities on
the environment. Antarctica, with its pristine environment and simple
ecosystems, offers unique insights into the Earth’s past, present, and future,
making it a critical area for research.
Q.2. What are Geoff Green’s reasons for
including high school students in the Students on Ice expedition?
Answer:
Geoff Green includes high school students in the Students on Ice expedition
because he believes that the younger generation holds the potential to make a
significant difference in the world. By exposing students to the fragile
environment of Antarctica, he hopes to inspire them to become future leaders
and decision-makers who are more aware of environmental issues and committed to
protecting the planet. He aims to provide them with a life-changing experience
that will foster a deeper understanding and respect for nature.
Q.3. ‘Take care of the small things and the
big things will take care of themselves.’ What is the relevance of this
statement in the context of the Antarctic environment?
Answer:
In the context of the Antarctic environment, the statement emphasizes the
interconnectedness of all living organisms. Even the smallest organisms, such
as phytoplankton, play a crucial role in maintaining the balance of the
ecosystem. Phytoplankton, which form the base of the food chain, help regulate
the carbon cycle and sustain marine life. Any disruption to these small
organisms can have a significant impact on the entire ecosystem. This
highlights the importance of addressing smaller environmental issues to prevent
larger ecological disasters.
Q.4. Why is Antarctica the place to go to,
to understand the Earth’s present, past, and future?
Answer:
Antarctica is the best place to study the Earth’s past, present, and future
because of its unique and pristine environment. The continent’s ice cores
provide invaluable records of past climate conditions and atmospheric
composition, offering insights into how the Earth’s climate has changed over
time. Antarctica’s simple ecosystems allow scientists to observe how small
environmental changes can have far-reaching effects. By studying the region,
scientists can better predict the impact of climate change on the planet and
develop strategies for mitigating future ecological challenges.