Used primarily in fertilizers, which element is never found free in nature even though it makes up about 2.5% of the earth's crust?
a. potassium
b. nitrogen
c. phosphorus
d. iron
a. potassium
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monster
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15
Albacore is a type of
a. shell-fish
b. tuna
c. marble
d. meteoroid
b. tuna
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15
The word "atom" is from a Greek word meaning:
a. small
b. indivisible
c. unseen
d. visible
b. indivisible
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15
If an individual is suffering from emphysema, what organ of the body is primarily affected?
a. heart
b. skin
c. liver
d. lungs
d. lungs
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15
One of the risks of exposure to high levels of noise is called tinnitus, which means:
a. a permanent loss of hearing
b. a persistent ringing or hissing in the ears
c. a temporary loss of hearing
d. abdominal discomfort
b. a persistent ringing or hissing in the ears
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15
What is the main cause of seasons on the Earth?
a. the distance between Earth and the sun
b. the tilt of Earth's axis
c. the speed the Earth travels around the sun
d. changes in the amount of energy coming from the sun
b. the tilt of Earth's axis
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15
The Statue of Liberty is green because of...
a. green stone
b. oxidized brass
c. steel painted green
d. oxidized copper
d. oxidized copper
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15
What vitamin complex includes thiamine, niacin, and riboflavin?
a. vitamin A
b. vitamin B
c. vitamin C
d. vitamin D
b. vitamin B
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baam
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15
The science of weights and measures is called:
a. metrology
b. meteorology
c. mineralogy
d. morphology
a. metrology
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15
Steel is composed of a number of elements. The two essential elements are iron and...
a. aluminum
b. carbon
c. nickel
d. silicon
b. carbon
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15
Which prefix is often used with scientific terms to indicate that something is the same, equal, or constant?
a. iso
b. mega
c. meta
d. quasi
a. iso
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15
How many men have walked on the moon?
a. 12
b. 10
c. 8
d. 6
a. 12
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15
If an individual is a dendrochronologist, what would they count?
a. tree rings
b. mammal hairs
c. cephalopod tentacles
d. insect populations