Why Have Plants Been Implicated in the Ordovician and Devonian

question 16

Multiple Choice

Why have plants been implicated in the Ordovician and Devonian glaciations,but not the Proterozoic glaciations?

• A)Proterozoic plants used anoxygenic photosynthesis.
• B)Proterozoic plants had simple root structures that did not increase rock weathering.
• C)Land plants had not yet evolved during the Proterozoic.
• D)The nonvascular plants present during the Proterozoic did not contribute to global nutrient cycles.

---

Definitions:

Vice-president

A senior executive position in a company responsible for overseeing specific business units, making strategic decisions, and representing the organization in certain capacities.

Chain of Command

The formal line of authority within an organization that dictates who reports to whom, from the highest executive to the lowest rank.

Effective Communication

The exchange of information in a way that is accurately received and understood by all parties involved.

Decode

The process of interpreting or understanding communication signals or symbols.