What type of marine scientist studies the Earth's ocean, continents, and climate?
A) Physical oceanographer
B) Marine climatologist
C) Chemical oceanographer
D) Marine geologist
D
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One of the skin-irritating components of poison oak is tetrahydrourushiol:
The long, nonpolar hydrocarbon tail embeds itself in a person's oily skin, where the molecule initiates an allergic response. Scratching the itch spreads tetrahydrourushiol molecules over a greater surface area, causing the zone of irritation to grow. Is this compound an alcohol or a phenol?
A. an alcohol because of the hydroxyl groups it contains B. a phenol because of the hydroxyl groups attached to the benzene ring C. both a phenol and an alcohol because of the hydroxyl groups it contains D. neither an alcohol nor phenol because it contains two hydroxyl groups instead of one
China's rail and road network is most dense in the:
A) north B) south C) east D) west
Tsunami travel times across a large body of water, such as the Pacific Ocean, are typically of the order of several days.
Answer the following statement true (T) or false (F)
Which of the following is said to be quantized?
A. the amount of time in an hour B. the volume of air in a balloon C. the number of eggs in an egg carton D. the amount of water in a glass E. none of the above