Elevated Carbon Dioxide Levels Have Been Shown to Contribute to the Greenhouse

question 42

Multiple Choice

Elevated carbon dioxide levels have been shown to contribute to the greenhouse effect, resulting in an increase in mean global temperature. Ecosystems where the largest warming has already occurred include snow-covered northern coniferous forests, tundra, and arctic sea ice habitats. Which statement best explains how the elimination of ice-covered ecosystems affects the rise or fall in global temperature?

• A) Melting ice releases dissolved ozone gas, which adds to the greenhouse effect.
• B) More reflective surfaces of ice are replaced with darker, more absorptive surfaces, thereby contributing to the warming trend.
• C) Large-scale ice melts actually contribute toward lowering global temperatures by decreasing salinity of the oceans.
• D) Carbon dioxide levels are lowered as a result of the greater volume of water to accommodate greater levels of dissolved gas.

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Definitions:

Employment Income

The compensation received by individuals for their labor or services, typically in the form of wages, salaries, or commissions, constituting a primary source of personal income.

Income Shares

Refers to the division of total income among different groups or quartiles within a population, often used to assess economic inequality.

Income Inequality

Income inequality is the uneven distribution of income within a population, leading to disparities in wealth and living standards among different social and economic groups.

Social Network

A social network is a structure made up of individuals or organizations that are connected by one or more specific types of interdependency, such as friendship, kinship, common interest, financial exchange, or relationships of beliefs, knowledge, or prestige.