Which of the Following Accurately Describes the First Earth Day

question 32

Multiple Choice

Which of the following accurately describes the first Earth Day?

• A)It was a nationwide ""teach-in"" about environmental issues.
• B)It involved about 20 million participants nationwide.
• C)It was sponsored by Senator Gaylord Nelson and organized by Denis Hayes.
• D)All of the above are true.

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Definitions:

Norepinephrine

A neurotransmitter and hormone involved in arousal, alertness, and the regulation of blood pressure.

Dopamine

A neurotransmitter involved in many functions, including motivation, reward, reinforcement, and motor control.

Neural Impulse

is the electrical signal transmitted along a neuron, facilitating communication between neurons or between neurons and muscles.

Threshold

The minimum level of stimulus intensity required for a stimulus to be detected.