Question

Arrange the periods of the Palaeozoic era in ascending order of geological timescale.

• A. Cambrian - Ordovician - Silurian -Devonian - Carboniferous - Permian
• B. Cambrian - Devonian - Ordovician - Silurian - Carboniferous - Permian
• C. Cambrian - Ordovician - Devonian - Silurian - Carboniferous - Permian
• D. Silurian - Devonian - Cambrian - Ordovician - Permian - Carboniferous.

Answer 1

The correct option is A Cambrian - Ordovician - Silurian -Devonian - Carboniferous - Permian

The periods of the Palaeozoic era ( the era of ancient life ) in ascending order of geological time scale is:
Cambrian: 542 to 488.3 million years ago.
Ordovician: 488.3 to 443.7 million years ago.
Silurian: 443.7 to 416 million years ago.
Devonian: 416 to 359.2 million years ago.
Carboniferous: 359.2 to 299 million years ago.
Permian: 299 to 251 million years ago.