Concept explainers
The correct option for the statement “The most important event during Cambrian period was the”.
Answer to Problem 7RAT
The correct option for the statement “The most important event during Cambrian period was the” is option (b).
Explanation of Solution
The Cambrian period is understood as the explosion of life forms. In this period of time, the Earth became warmer than the Proterozoic period. The ice glaciers melted and raised the level of sea water. The low elevation areas of the continents were covered by the sea water. This creates a habitat for the marine organism and increases the diversity of life.
The most important event of this era is many organisms got to know the ability to secrete calcium carbonate and calcium sulfate to the formation of outer skeleton or shell.
Conclusion:
herefore, the correct option for the statement “The most important event during Cambrian period was the” is option (b).
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