[Answer] Hot water can freeze faster than cold water

Step 1 : Introduction to the question " Hot water can freeze faster than cold water "

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Hot water seems to freeze faster than cold water, known as the Mpemba effect. The effect was named after the Tanzanian student who in 1963 noticed that hot ice cream mix freezes faster than a cold one. The effect was first observed by Aristotle in the 4th century BC, then later Francis Bacon and René Descartes. Mpemba published a paper on his findings in 1969. Theories for the Mpemba effect have included: faster evaporation of hot water, therefore reducing the volume left to freeze; formation of a frost layer on cold water, insulating it; and different concentrations of solutes such as carbon dioxide, which is driven off when the water is heated. Unfortunately the effect doesn't always appear - cold water often does actually freeze faster than hot, as you would expect. But this Mpemba effect occurs regularly, and no one has ever been able to definitively answer why. Source

[Answer] Dehydration is the medical term for a lack of what?

Step 1 : Introduction to the question " Dehydration is the medical term for a lack of what? "

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In physiology, dehydration is a lack of total body water, with an accompanying disruption of metabolic processes. It occurs when free water loss exceeds free water intake, usually due to exercise, disease, or high environmental temperature.

Most people can tolerate a 3-4% decrease in total body water without difficulty or adverse health effects. A 5-8% decrease can cause fatigue and dizziness. Loss of over ten percent of total body water can cause physical and mental deterioration, accompanied by severe thirst. Death occurs at a loss of between fifteen and twenty-five percent of the body water.

Mild dehydration is characterized by thirst and general discomfort and is usually resolved with oral rehydration.

More Info: en.wikipedia.org

[Answer] What is an antonym for “acervation”?

Step 1 : Introduction to the question "What is an antonym for “acervation”?"

...1. Rigging 2. Digging 3. Jigging 4. Gigging

[Answer] Who was the youngest person to ever appear on the cover of Vogue?

Step 1 : Introduction to the question "Who was the youngest person to ever appear on the cover of Vogue?"

...Brooke Shields made her American Vogue cover debut in February 1980 when she was just 14 years old, becoming the magazine’s youngest-ever cover star. By then, she was already an experienced model and actress who had been working professionally. Her youthful appearance helped make her one of the most recognizable faces of the 1980s. Around the same time, her high-profile advertising campaigns and film roles turned her into an international celebrity. Shields ultimately appeared on 14 Vogue covers during her career.

[Answer] Who was the youngest person to ever appear on the cover of Vogue?

Step 1 : Introduction to the question "Who was the youngest person to ever appear on the cover of Vogue?"

...Brooke Shields made her American Vogue cover debut in February 1980 when she was just 14 years old, becoming the magazine’s youngest-ever cover star. By then, she was already an experienced model and actress who had been working professionally. Her youthful appearance helped make her one of the most recognizable faces of the 1980s. Around the same time, her high-profile advertising campaigns and film roles turned her into an international celebrity. Shields ultimately appeared on 14 Vogue covers during her career.

[Answer] Who was the youngest person to ever appear on the cover of Vogue?

Step 1 : Introduction to the question "Who was the youngest person to ever appear on the cover of Vogue?"

...Brooke Shields made her American Vogue cover debut in February 1980 when she was just 14 years old, becoming the magazine’s youngest-ever cover star. By then, she was already an experienced model and actress who had been working professionally. Her youthful appearance helped make her one of the most recognizable faces of the 1980s. Around the same time, her high-profile advertising campaigns and film roles turned her into an international celebrity. Shields ultimately appeared on 14 Vogue covers during her career.

[Answer] Who was the youngest person to ever appear on the cover of Vogue?

Step 1 : Introduction to the question "Who was the youngest person to ever appear on the cover of Vogue?"

...Brooke Shields made her American Vogue cover debut in February 1980 when she was just 14 years old, becoming the magazine’s youngest-ever cover star. By then, she was already an experienced model and actress who had been working professionally. Her youthful appearance helped make her one of the most recognizable faces of the 1980s. Around the same time, her high-profile advertising campaigns and film roles turned her into an international celebrity. Shields ultimately appeared on 14 Vogue covers during her career.