What Do We Currently Believe Was the Main Source of the Earth's

question 139

Multiple Choice

What do we currently believe was the main source of the Earth's oceans and atmosphere?

• A) impacts by icy planetesimals
• B) outgassing by volcanoes
• C) material directly accreted from the solar nebula
• D) melting and vaporization of polar glaciers

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Definitions:

Task Identity

The degree to which a job requires completion of a whole and identifiable piece of work.

Job Redesigned

The restructuring of work tasks and roles to enhance job satisfaction and productivity.

Visible Outcome

Describes a result or effect of an action, policy, or process that is easily observed, measured, or assessed.

Major Part

Describes the most significant or substantial component, section, or aspect of a whole, often holding the greatest importance or influence.