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

Responses

Continental drift affected the biosphere.
Continental drift affected the biosphere.

Oxygen is being produced by the biosphere.
Oxygen is being produced by the biosphere.

Carbon dioxide is being produced by the biosphere.
Carbon dioxide is being produced by the biosphere.

Volcanic action has damaged the biosphere.
Volcanic action has damaged the biosphere.

1 answer

The presence of red lines in rocks typically indicates the presence of iron oxides, which often signifies that oxygen was abundant in the environment during the time those rocks were formed. This suggests that oxygen is being produced by the biosphere, often associated with photosynthetic organisms. Therefore, the correct response would be:

Oxygen is being produced by the biosphere.