________ Is the Process Where Calcium Ions in Limestone Are

question 44

Multiple Choice

________ is the process where calcium ions in limestone are replaced with magnesium or small amounts of iron.

• A)Permineralization
• B)Replacement
• C)Precipitation
• D)Dolomitization

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Definitions:

Deep Sleep Disorders

A category of sleep disorders that affect the ability to achieve or maintain deep, restorative sleep stages.

Sleep Terrors

Frightening, dream-like experiences that occur during the deepest stage of NREM sleep; nightmares, in contrast, occur during REM sleep.

Sleepwalking

A sleep disorder causing people to get up and walk around or perform other complex behaviors while in a state of sleep.

Nicotine

A stimulant and psychoactive compound found in tobacco products.