For the Majority of Minerals,the Streak Obtained When the Mineral

question 49

Multiple Choice

For the majority of minerals,the streak obtained when the mineral is scratched against a porcelain plate is

• A) only useful if the mineral is softer than the porcelain streak plate.
• B) always diagnostic of that mineral.
• C) not useful,because the porcelain will often chemically react with the mineral.
• D) always dark brown or black.

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Definitions:

DSM-5 Criteria

The diagnostic guidelines and criteria set forth in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders for identifying mental health disorders.

Bulimia Nervosa

An eating disorder marked by binge eating followed by methods to prevent weight gain such as vomiting, fasting, or excessive exercise.

Chronic Dieters

Individuals who repeatedly engage in dieting efforts, often in an unhealthy and continuous cycle of weight loss and gain.