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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 16, Problem 12SQ
Textbook Problem
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Did Pangea or Gondwana form first?

Summary Introduction

To explain: Whether Pangea or Gondwana form first.

Concept Introduction: Plate tectonics is the theory that explains about the movement and features of the earth’s surface plate. The supercontinents Gondwana and Pangea are formed due to the breakage when all the populations are combined together or divide up during solidification of the earth’s outer rock layer that had taken place 455 billion years ago. Gondwana was the primeval supercontinent that was present around 540 million years ago. It had started break up around 180 million years ago. The supercontinent that existed during the late Paleozoic and early Mesozoic eras was Pangea that was present around 335 million years ago. It had started to break up around 175 million years ago.

Explanation of Solution

Gondwana formed first before Pangea.  It was believed that the earth existed about 4.5 billion years old.. These two supercontinents started to break hundreds of millions of years ago.

Gondwana lied in the southern hemisphere, which is a part of the Pangaea. It contained the present day- Africa, South America, Antarctica, India and Australia. Before the supercontinent Pangea there existed two main other supercontinents called Rodinia and Gondwana during the late Triassic...

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