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How many hearts does an octopus have? a. 1 b. 2 c. 3 d. 4
c. 3
At what temperature are Celsius and Fahrenheit equal? a. -65 b. - 40 c. 40 d. 65
b. -40
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
The sun makes up approximately what percent of matter in our solar system? a. 17% b. 50% c. 85% d. 99%
d. 99%
If a quiet whisper is 10 decibels, then what is the average pain threshold in decibels for humans? a. 50 decibels b. 80 decibels c.120 decibels d. 200 decibels
c. 120 decibels
Which of the following is considered a renewable resource? a. coal fired power plant b. hydroelectric dam c. combustion turbine facility d. nuclear fission power plant
b. hydroelectric dam
In daylight, the human eye is most sensitive to which color? a. green b. red c. blue d. orange
a. green
What common flavoring comes from the long slender fruit of a climbing orchid? a. cinnamon b. vanilla c. nutmeg d. peppermint
b. vanilla
In the U.S., how many gallons of fresh water does each person use per day for personal use on average? a. 10 gallons b. 30 gallons c. 60 gallons d. 90 gallons
d. 90 gallons
Fool's gold is a common name for this mineral: a. halite b. cinnabar c. magnetite d. pyrite
d. pyrite
The first animal launched into orbit was a... a. mouse b. monkey c. chimpanzee d. dog
d. dog
The process by which a substance absorbs moisture upon exposure to the atmosphere is called: a. efflorescence b. deliquescence c. dehydrogenation d. desalination
b. deliquescence
One metal dissolved in another is called a. an alloy b. an assay c. a mineral d. a ceramic
a. an alloy
Which of the following is an important element of stainless steel? a. chromium b. magnesium c. copper d. nickel
a. chromium
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
Plants get their nitrogen from... a. rain b. the soil c. the air d. water
b. the soil
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
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
A device used to measure the amount of moisture in the atmosphere is called... a. a hydrometer b. a hygrometer c. an anemometer d. a barometer
b. a hygrometer
What vitamin complex includes thiamine, niacin, and riboflavin? a. vitamin A b. vitamin B c. vitamin C d. vitamin D
b. vitamin B
The study of poisons is called: a. oncology b. toxicology c. phrenology d. ergonomics
b. toxicology
About how long does it take for light to travel from the sun to the Earth? a. 9-10 seconds b. 9-10 minutes c. 9-10 days d. 9-10 years
b. 9-10 minutes
What state in the U.S. has the most nuclear power plants? a. New York b. Illinois c. Pennsylvania d. South Carolina
b. Illinois
If an individual is a dendrochronologist, what would they count? a. tree rings b. mammal hairs c. cephalopod tentacles d. insect populations
a. tree rings
Which type of camel has two humps? a. dromedary b. guanaco c. bactrian d. alpaca
c. bactrian
Saltwater freezes at... a. the same temperature as fresh water b. a slightly higher temperature than fresh water c. a slightly lower temperature than fresh water d. saltwater does not freeze
c. a slightly lower temperature than fresh water
The word "atom" is from a Greek word meaning: a. small b. indivisible c. unseen d. visible
b. indivisible
The Statue of Liberty is green because of... a. green stone b. oxidized brass c. steel painted green d. oxidized copper
d. oxidized copper
Loss of calcium from bones is called... a. cystic fibrosis b. osteoporosis c. tuberculosis d. endocytosis
b. osteoporosis
Which of the following is made primarily of calcium carbonate? a. fish scales b. shark teeth c. oyster shells d. whale bones
c. oyster shells
The science of weights and measures is called: a. metrology b. meteorology c. mineralogy d. morphology
a. metrology
At room temperature, most elements are in which phase of matter? a. solid b. liquid c. gas d. plasma
a. solid
Which mammal group gives birth to undeveloped young that are kept in pouches? a. monotremes b. pangolins c. marsupials d. pachyderma
c. marsupials
Occasionally, a bad cold will cause a decrease in a person's hearing ability. What is the name of the tube that becomes blocked to cause this problem? a. esophagus b. occipital tube c. narietal opening d. eustachian tube
d. eustachian tube
If a metal can be pulled into wires relatively easily it is called: a. malleable b. ductile c. extractive d. tactile
b. ductile
The study of how people use tools to perform work and how people physically relate to their working environment is called: a. engineering b. ergonomics c. agronomy d. physiology
b. ergonomics
The branch of medical science which is concerned with the study of disease as it affects a community of people is called: a. epidemiology b. oncology c. paleontology d. pathology
a. epidemiology
The study of phenomena at very low temperatures is called: a. heat transfer b morphology c. crystallography d. cryogenics
d. cryogenics
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
What element, whose symbol is derived from the Latin for "liquid silver," has been found in Egyptian tombs from 1500 B.C.? a. titanium b. iron c. mercury d. lead
c. mercury
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
What land mammal holds the record for greatest age? a. hippopotamus b. elephant c. human d. brown bear
c. human
How many time zones are there on Earth? a. 4 b. 8 c. 12 d. 24
d. 24
What nocturnal animal group makes up 1/4 of all mammal species? a. bats b. owls c. wombats d. firefly
a. bats
The only species of cat that lives and hunts in groups is... a. lions b. leopards c. jaguars d. cougars
a. lions
Albacore is a type of a. shell-fish b. tuna c. marble d. meteoroid
b. tuna
Bees must collect nectar from approximately how many flowers to make 1 pound of honeycomb? a. 10 thousand b. 2 million c. 20 million d. 50 million
c. 20 million
What mammal lays eggs? a. a duck b. a platypus c. a bat d. a turtle
b. a platypus
A cloud at ground level is called what? a. rain b. sleet c. fog d. mist
c. fog
As you go down a well, your weight... a. increases slightly b. decreases slightly c. stays exactly the same d. changes drastically
b. decreases slightly
The scarab, worshiped by the Egyptians, is what type of beetle? a. a jewel beetle b. a leaf beetle c. a dung beetle d. a tiger beetle
c. a dung beetle
Which sea is the saltiest natural lake and is also at the lowest elevation on the face of the earth? a. the Black Sea b. the Mediterranean Sea c. the Red Sea d. the Dead Sea
d. the Dead Sea
The fastest-running terrestrial (land) animal is... a. cheetah b. lion c. man z. jaguar
a. cheetah
How many men have walked on the moon? a. 12 b. 10 c. 8 d. 6
a. 12
Unlike rodents, the rabbit has how many incisor teeth? a. 2 b. 3 c. 4 d. 5
c. four
Pollination by birds is called... a. autogamy b. ornihophily c. entomophily d. anemophily
b. ornithophily
What is the name for wood whose cells have been replaced with mineral deposits? a. driftwood b. dead wood c. cellulitis d. petrified wood
d. petrified wood
What weather phenomenon causes more deaths in the U.S. annually than any other except lightning? a. wildfires b. tornadoes c. hurricanes d. tsunamis
b. tornadoes


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