Ice Core Samples Preserve Records of Annual Snowfall in a Format

question 4

Multiple Choice

Ice core samples preserve records of annual snowfall in a format much like

• A) climatic portraits.
• B) tree-ring samples.
• C) episodes of warmer or colder conditions.
• D) interglacial cycles.

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A type of antidepressant medication that works by affecting neurotransmitters in the brain to improve mood.

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Thoughts about or an inclination towards ending one's own life.

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Unintended reactions or results, often negative, of medication or treatment.