By Approximately ________ Years Ago, ________ Had Produced Oxygen in Enough

question 51

Multiple Choice

By approximately ________ years ago, ________ had produced oxygen in enough amounts for it to make up a significant fraction of Earth's atmosphere.

• A) 100 million; trees and plants
• B) 1 billion; trees and plants
• C) 250 million; bacteria and algae
• D) 2.5 billion; bacteria and algae
• E) 2,000; animals and humans

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Definitions:

Organizational Environment

The external and internal elements that surround an organization and can influence its operations and success.

Primary Audience

The initial or main group of people targeted or addressed by a communication, presentation, or document.

Secondary Audience

Individuals or groups who are not the primary target for a message but who may still receive and interpret it.

Initial Audience

The primary group of people for whom a piece of communication is intended, identified at the beginning of the communication planning process.