When a Stalagmite Has an Oxygen-18 to ____________________ Ratio That

question 31

Short Answer

When a stalagmite has an oxygen-18 to ____________________ ratio that is low, the climate at the time the stalagmite formed was relatively ____________________

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Definitions:

E-cigarettes

Electronic devices that simulate tobacco smoking by producing an aerosol, often referred to as vapor, that users inhale.

Smoking

The act of inhaling and exhaling the smoke of tobacco or a drug, which has various health risks including respiratory diseases, heart disease, and cancer.

Dopamine Neurons

Specialized nerve cells that produce and release dopamine, a neurotransmitter that plays key roles in motivation, reward, and movement.

Nicotine

A potent, addictive substance found in tobacco, affecting the nervous system by mimicking the neurotransmitter acetylcholine.