Because of Their Heavy Reliance on Fossil Fuels, Developed Nations

question 22

Multiple Choice

Because of their heavy reliance on fossil fuels, developed nations contribute disproportionately to the emission of greenhouse gases, which threaten the environment. For example, even though it holds only 4 percent of the world's population, the United States is responsible for approximately _____ of the global energy use.

• A) one-fifth
• B) one-third
• C) one-half
• D) two-thirds

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Definitions:

Sympathetic Activity

Part of the autonomic nervous system that prepares the body for 'fight or flight' response by increasing heart rate, constricting blood vessels, and raising blood pressure.

Iodine Deficiency

A lack of iodine in the body, leading to thyroid problems, including goiter and intellectual disabilities in severe cases.

TSH

Thyroid-Stimulating Hormone, a hormone produced by the pituitary gland that regulates the production of hormones by the thyroid gland.

Thyroid Hormone

Hormones produced by the thyroid gland, such as thyroxine, that regulate metabolism, energy generation, and growth and development.