Why Does Ice Form at the Surface of a Body

question 58

Multiple Choice

Why does ice form at the surface of a body of fresh water instead of at the bottom?

• A)Initial freezing requires the presence of air in order to form the ice lattice, thus the surface water will become solid first.
• B)Intermolecular forces are greater at the surface allowing the surface molecules to form the solid phase more quickly.
• C)Water "near" the freezing point of 0°C is less dense than warmer water, and the colder water will "float" on the warmer water. This allows ice to form at the surface.
• D)All of the above are true.

Grasp evolutionary explanations of dating, mating habits, and mate selection preferences.

Identify and comprehend the factors contributing to physical attractiveness and their empirical support.

Recognize the impact of proximity and mere exposure effect on interpersonal attraction.

Differentiate between characteristics of close relationships and common misconceptions.

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Definitions:

Trisomy 21

Also known as Down syndrome, it is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

Mosaicism

A condition in which an individual has cells of different genetic makeup, which can result from a mutation occurring after fertilization.

Dyslexia

A learning disorder characterized by difficulty reading due to problems identifying speech sounds and learning how they relate to letters and words.

Reading Proficiency

The ability to read text, understand its meaning, and integrate what has been read with existing knowledge.