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The strata laid down in extensive shallow seas

Leaves a record of continental growth

The experiment gains momentum for nature

While mountains are built on a macroscopic scale

Down in the depths cyanobacteria....evolved

Unoxidised sulphur and iron

When saturated, a new scope unfolds

Oxygen will rise in the atmosphere

Cycle begins with photosynthesis

A great event or crisis for some

It will bring death to the anaerobic

Sexual age of reproduction

Sharing genes to speed advance

A shining snowball, floating in space

Waiting to find the perfect equilibrium

Complex beings start to move

The trilobites arise