Raz Just Spent 10 Hours Asleep

question 19

Multiple Choice

Raz just spent 10 hours asleep.How much of that time did he likely spend dreaming?

• A)2 hours
• B)3 hours
• C)4 hours
• D)5 hours

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Definitions:

Zinc

A chemical element with the symbol Zn and atomic number 30, known for its corrosion-resistant properties and wide use in galvanization and alloys.

Average Cost

The total cost of production divided by the number of units produced, indicating the cost per unit.

Copper

A reddish-brown metal with high electrical and thermal conductivity, used extensively in electrical wiring and plumbing.

Zinc

A metallic element used primarily for galvanizing steel and iron products to prevent rust; also important in biology and nutrition.