History, asked by gy835079, 6 hours ago

How many geographical periods. Name them.​

Answers

Answered by alanw5926
1

Explanation:

Structure. The twelve currently recognised periods of the present eon – the Phanerozoic – are defined by the International Commission on Stratigraphy (ICS) by reference to the stratigraphy at particular locations around the world.

Answered by vikrantvikrantchaudh
1

Answer:

Structure. The twelve currently recognised periods of the present eon – the Phanerozoic – are defined by the International Commission on Stratigraphy (ICS) by reference to the stratigraphy at particular locations around the world.

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