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NCERT Solutions for Class 12 Help.html Vistas Chapter 3 A Journey To The End Of The Earth

A Journey To The End Of The Earth Here is the CBSE Help.html Chapter 3 for Class 12 students. Summary and detailed explanation of the lesson, including the definitions of difficult words. All of the exercises and questions and answers from the lesson's back end have been completed. NCERT Solutions for Class 12 Help.html A Journey To The End Of The Earth Chapter 3 NCERT Solutions for Class 12 Help.html A Journey To The End Of The Earth Chapter 3 The following is a summary in Hindi and English for the academic year 2025-26. You can save these solutions to your computer or use the Class 12 Help.html.

Question 1
CBSEENEN12020092

How do geological phenomena help us to know about the history of mankind?

Solution

Six hundred and fifty million years ago there was no life except a giant southern super-continent named Gondwana. Things were quite different and the climate was much warmer. It had a variety of flora and fauna. Gondwana thrived for 500 million years. Finally it broke into separate countries as they exist today. It was the time when dinosaurs were wiped out and the mammals got under way. Thus Gondwana centred around roughly the present day Antarctica.

In case we visit Antarctica, we can realise where we have come from and where we could possibly be leading. It is to understand the significance of Cardilleran folds and pre-Cambrian granite shields, ozone and carbon, evolution and extinction. Thus, geological phenomena help us to know about the history of mankind. Due to geological changes, India pushed northward and formed the Himalayas. South America drifted off to join North America. The melting of polar ice caps can tell us where possibly we are heading to.

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