The exactly answer is A.The increase of dinosaurs did no occur during the Cenozoic era. The moment of Mesozoic era is once the rise of dinosaurs discovered. The Cenozoic era is termed as the current geological era. The is the coverage period to existing from 66 million years ago. It is also referred to as the period of mammals reason being huge mammals that conquer it. Cenozoic is separated into three durations which incorporate Quarternary, Neogene, and Paleogene. Cenozoic had seven epochs which incorporate Holocene, Pleistocene, Pliocene, Miocene, Oligocene, Eocene, and Paleocene. Quarternary has actually recognized by the global commission top top stratigraphy. Some other periods which were separated from Cenozoic encompass Mesozoic and Paleozoic.

You are watching: Which of the following did not occur during the cenozoic era?



Answer from: christinapim
A. The rise of the dinosaurs

Answer from: aroman4511

alternative d

Explanation: The formation of the ozone layer walk not developed during the Cenozoic era. That took location 2 million years ago. The formation of ozone great took countless years back that quiet is present.

The ozone great acts as a barrier and provides protection against the harmful radiation. The Cenozoic era started about 65 million years back which proves the formation of ozone layer took lengthy time back and not throughout Cenozoic era.



Answer from: cody1097

Option (B)

Explanation:

When the initially developing aquatic organisms such together the blue-green algae began to usage the solar power in order to transform the water molecules and carbon dioxide and also converting them right into organic compounds and also the molecular oxygen (O₂). This is known as the photosynthesis process that developed a far-ranging amount that oxygen in the atmosphere. This oxygen molecules, together absorbs the UV radiations emitted native the sun, it division the oxygen molecules and forms a single atom that oxygen. These atoms climate again is added to the molecule oxygen and forms the ozone (O₃) molecule.

This is exactly how the ozone layer has actually formed about 2 billion years ago.

Thus, the ozone layer walk not form during the Cenozoic era.

Hence, the exactly answer is option (B).



Answer from: stevenabdullatif16
The best and most exactly answer amongst the choices detailed by your question is the second choice or letter B.The formation of the ozone layer had actually not occurred in the Cenozoic Era.I hope my price has involved your help. Say thanks to you for posting her question here in us hope to answer much more of your questions and inquiries soon. Have actually a nice day ahead!

Answer from: leewalker1341
The exactly answer that the given question above would be choice D. The choice that did no occur during the Cenozoic era is the development of the ozone layer. The ozone layer has actually long to be there before any era due to the fact that it is component of the earth"s atmosphere. Expect this answer helps. 

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