What do red lines in rocks indicate about the biosphere? (1 point

O Volcanic action has damaged the biosphere.
O Carbon dioxide is being produced by the biosphere.
O Oxygen is being produced by the biosphere.
O Continental drift affected the biosphere.

None of the above. The presence of red lines in rocks usually indicates the presence of iron minerals, such as iron oxide (rust), and does not necessarily relate to the biosphere.

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