UPSC CAPF Assistant Commandant Model Paper 7
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Question : 14 of 125
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With reference to Proterozoic Eon, which of the following statements is/are correct?
1.It is the last eon of the Precambrian “supereon”.
2.The early and late phases of this eon may have undergone Snowball Earth periods (the planet suffered below-zero temperatures, extensive glaciation and as a result drop in sea levels).
3.It was a very tectonically active period in the Earth’s history.
4.The atmosphere was without oxygen.
Select the correct answer using the code given below
1.It is the last eon of the Precambrian “supereon”.
2.The early and late phases of this eon may have undergone Snowball Earth periods (the planet suffered below-zero temperatures, extensive glaciation and as a result drop in sea levels).
3.It was a very tectonically active period in the Earth’s history.
4.The atmosphere was without oxygen.
Select the correct answer using the code given below
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