Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282

Oceanography: An Invitation To Mar...

9th Edition
Garrison + 1 other
Publisher: Brooks Cole
ISBN: 9781305254282


Chapter 13, Problem 7TC
Textbook Problem

Are asteroid collisions the only causes of mass extinction events?

Expert Solution
To determine

Whether asteroid collisions are the only causes of mass extinction events.

Explanation of Solution

Mass extinctions are sudden and violent occurrences of geological phenomenon such as collision of asteroid or comet with the Earth, which results in the death of many species simultaneously (in geological terms). These mass extinctions events are abrupt and do not provide the gradual time spans required for evolution. Scientists are not sure of the causes of the mass extinctions.

Asteroids were not the only cause. The massive volcanic eruptions can also have similar effects. The violent volcanic eruptions eject huge amounts of volcanic materials such as magma, tephra, gases, and volcanic ash into the atmosphere. 

Massive volcanic eruptions caused the greatest of all mass extinctions in regions now called Siberia. This was called the P-T event...

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Chapter 13 Solutions

Oceanography: An Invitation To Marine Science, Loose-leaf Versin
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Ch. 13.4 - What are the three domains of living things?Ch. 13.4 - How are organisms named?Ch. 13.4 - What advantages do scientific names have over...Ch. 13.5 - We seem instinctively to know whether something is...Ch. 13.5 - What happens to an organism if it has no access to...Ch. 13.5 - What are the starting products for photosynthesis?...Ch. 13.5 - How is chemosynthesis different from...Ch. 13.5 - What is an autotroph? A heterotroph? How are they...Ch. 13.5 - What is a trophic pyramid? What is the...Ch. 13.6 - How does an atom of iron in steel differ from an...Ch. 13.6 - Which elements make up about 99% of the mass of...Ch. 13.7 - What does the oceans density stratification have...Ch. 13.7 - What is the source of the carbon made into...Ch. 13.7 - Why cant marine organisms use the nitrogen gas...Ch. 13.7 - How does a long biogeochemical loop differ from a...Ch. 13.8 - How can photographers take pictures showing red or...Ch. 13.8 - How does gargling with salt water reduce the...Ch. 13.8 - Whats a limiting factor? Can you provide an...Ch. 13.8 - What characterizes the photic, euphotic, and...Ch. 13.8 - How does metabolic rate vary with temperature?Ch. 13.8 - How do dissolved gas concentrations vary with...Ch. 13.8 - Does the great hydrostatic pressure of the seabed...Ch. 13.8 - How is diffusion different from osmosis?Ch. 13 - The second law of thermodynamics states that...Ch. 13 - Can you suggest any ways humans might be altering...Ch. 13 - What is a limiting factor? Can you think of some...Ch. 13 - How is evolution by natural selection thought to...Ch. 13 - How would you define biological success? Does...Ch. 13 - How does a natural system of classification differ...Ch. 13 - Are asteroid collisions the only causes of mass...

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