Why Do Ecologists Say That Earth Is a Closed System

question 31

Multiple Choice

Why do ecologists say that Earth is a closed system for matter?

• A) They say this because there are no new inputs of matter.
• B) They say this because there is no net loss of matter.
• C) They say this because matter cycles in and out of organisms in ecosystems.
• D) They say this because matter stays in the biosphere.
• E) All of the above are correct.

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Definitions:

Ethical Misconduct

Actions or behavior by an individual or within an organization that violates moral or professional principles.

Lower Entry Levels

Positions or jobs that require minimal professional experience or qualifications, often the starting point of a career path.

Mid-Level Employees

Workers who occupy positions between entry-level and top management, typically responsible for overseeing operational activities and reporting to senior management.

Increasingly Diverse

A term describing environments, populations, or groups that are becoming more varied in terms of cultural, ethnic, gender, or other demographic characteristics.