Coal Pollutes Heavily

question 139

Multiple Choice

Coal pollutes heavily:

• A) so its use has declined markedly in the past 15 years.
• B) yet its consumption has increased and is projected to continue, so that greenhouse gases are an issue, especially in China, the U.S., and India.
• C) yet it does not contribute to greenhouse gas emissions.
• D) because coal-fired plants do not use scrubbers.

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Definitions:

Identical Twin Study

Research that compares identical twins to determine the relative influence of genetics versus environment on various traits or conditions.

Genes

Units of heredity made up of DNA that are responsible for the inherited traits and characteristics of organisms.

Family Studies

An academic and research field focusing on the dynamics and relationships within family systems, including aspects of psychology, sociology, and human development.

Twin

One of a pair of siblings born at the same time from the same pregnancy, either identical (monozygotic) or fraternal (dizygotic).