Question

Drag the tiles to the correct boxes to complete the pairs. before the presence of living organisms, earth was a very different place. match each fact about precambrian earth to the sphere most affected by it. 1) cyanobacteria began to emerge as a life-form.

2) oceans contained far less salt than they do today.
3) oxygen spilled into this sphere from ocean waters.
4) oxidation in rocks and minerals was not possible.

1) atmosphere
2) biosphere
3) hydrosphere
4) lithosphere

Answer 1

Cyanobacteria emerged in the biosphere, causing oxygen to enter the hydrosphere, and enabling oxidation in the lithosphere.

Step-by-step explanation:

Answer:

1. Oxygen spilled into hydrosphere from ocean waters.
2. Cyanobacteria began to emerge as a life-form in the biosphere.
3. Oxidation in rocks and minerals was not possible in the lithosphere.
4. The atmosphere was affected by the presence of living organisms.

The emergence of cyanobacteria in the biosphere contributed to the oxygenation of the atmosphere. As a result, oxygen spilled into the hydrosphere from ocean waters. Additionally, oxidation in rocks and minerals became possible in the lithosphere due to the presence of life.