Average Atmospheric CO₂ Concentrations Have ____ Over the Past 100

question 65

Multiple Choice

Average atmospheric CO₂ concentrations have ____ over the past 100 years.

• A) slightly decreased
• B) remained constant
• C) significantly decreased
• D) increased

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Marital Status

A person's legal standing in terms of being married, single, divorced, or widowed.

Social Security Number

A unique numerical identifier assigned to U.S. citizens and eligible residents for tracking income and determining benefits.

Appliance Store

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