Description : Ozone in the upper atmosphere is produced from: w) lightning x) photochemical reactions y) electrical appliances on Earth z) model fractals
Last Answer : ANSWER: X -- PHOTOCHEMICAL REACTIONS
Description : One of the potential health effects of exposure to high levels of noise is called tinnitus (pron: ti - NI - tes), which means: w) a permanent loss of hearing. x) a persistent ringing ... ) a temporary loss of hearing, especially of upper frequencies. z) abdominal discomfort from low frequency noise.
Last Answer : ANSWER: X -- A PERSISTENT RINGING OR HISSING IN THE EARS AFTER EXPOSURE.
Description : In 1976, Congress enacted the Resource Conservation and Recovery Act designed to protect public health and the environment from improper management of hazardous waste. The Resource Conservation and Recovery Act categorizes hazardous wastes into four groups. Identify three of the four groups.
Last Answer : ANSWER: TOXIC (POISONOUS), REACTIVE, IGNITABLE, AND CORROSIVE
Description : The most serious environmental pollution from a nuclear reactor is: w) radioactivity x) particulate formation y) thermal pollution z) noise pollution
Last Answer : ANSWER: Y -- THERMAL POLLUTION
Description : Electric power is less expensive at night because: w) more hydroelectric generation is brought on line at night. x) there is less demand at night. y) pollution control is less stringent at night. z) power plants are more efficient at night.
Last Answer : ANSWER: X -- THERE IS LESS DEMAND AT NIGHT.
Description : Steel is composed of a number of elements. The two essential elements are iron and w) aluminum x) carbon y) nickel z) silicon
Last Answer : ANSWER: X -- CARBON
Description : For a DC motor, what major component in addition to the field winding and the armature winding is necessary? w) a commutator x) a stator y) a battery z) a rotor
Last Answer : ANSWER: W -- A COMMUTATOR
Description : Name a component of gasoline that has been classified by the U.S. EPA as a "known human carcinogen".
Last Answer : ANSWER: XENZENE
Description : A color television set employs a 25,000 volt electron accelerator to produce the picture and potentially harmful radiation which must be shielded against. The main component of this radiation consists ... which penetrate the picture tube x) soft x-rays y) microwaves z) ultraviolet radiation
Last Answer : ANSWER: X -- SOFT X-RAYS
Description : What is the approximate weight in pounds of the atmosphere on a 1 sq. ft. surface at sea level? w) 15 lbs. x) 1500 lbs. y) 2100 lbs. z) 20,000 lbs.
Last Answer : ANSWER: Y -- 2100 LBS.
Description : The process by which a substance absorbs moisture upon exposure to the atmosphere is called: w) efflorescence x) deliquescence y) dehydrogenation z) desalination
Last Answer : ANSWER: X -- DELIQUESCENCE
Description : A device used to measure the amount of moisture in the atmosphere is called a: w) hydrometer (pron: high-dro-me-ter) x) hygrometer (pron: high-gro-me-ter) y) anemometer z) barometer
Last Answer : ANSWER: X -- HYGROMETER
Description : Distemper is used to coat a) External concrete services b) Internal surfaces not exposed to weather* c) Woodwork d) Compound walls
Last Answer : b) Internal surfaces not exposed to weather*
Description : Movement exhibited by plants toward the "center of the Earth" is called?
Last Answer : ANSWER: GEOTROPISM
Description : The most abundant organic molecule on the surface of the Earth is: w) cellulose x) chitin y) DNA z) hemoglobin
Last Answer : ANSWER: W -- CELLULOSE
Description : Recent discoveries of ancient cratering near the Yucatan Peninsula support the theory that a meteor or cometary impact may have resulted in mass extinctions of species on Earth about 65 million years ago. ... is that impact thought to have occurred? w) Permian x) Triassic y) Jurassic z) Cretaceous
Last Answer : ANSWER: Z -- CRETACEOUS
Description : Name the first man-made space craft to orbit the Earth?
Last Answer : ANSWER: SPUTNIK (ACCEPT SPUTNIK I)
Description : Biomass energy is: w) formed through photosynthesis x) caused by heat due to the large mass of the earth y) has been used for only a few years z) is effective in only certain regions of the United States
Last Answer : ANSWER: W -- FORMED THROUGH PHOTOSYNTHESIS
Description : In the early 17th century, based on his observations with a telescope, Galileo Galilei attacked a belief espoused by the church. That belief was: w) that the earth was flat. x) the sky was a large dome ... seen. y) that the earth was at the center of the universe. z) there are no other planets.
Last Answer : ANSWER: Y -- THAT THE EARTH WAS AT THE CENTER OF THE UNIVERSE.
Description : To within a half minute, how many minutes does it take for light to travel from the sun to the Earth?
Last Answer : ANSWER: 9-1/2 MINUTES (accept: 9 to 10 minutes)
Description : What month is showing on the calendar when the Earth is nearest the sun?
Last Answer : ANSWER: JANUARY
Description : The first American Astronaut to ORBIT the Earth was: w) Alan Shepard x) John Glenn y) Gus Grissom z) Scott Carpenter
Last Answer : ANSWER: X -- JOHN GLENN
Description : Which sea is the saltiest natural lake and is also at the lowest elevation on the face of the earth?
Last Answer : ANSWER: THE DEAD SEA
Description : What common flavoring comes from the long slender fruit of a climbing orchid?
Last Answer : ANSWER: VANILLA
Description : "Hard" water is related to the presence of high concentrations of primarily four metal ions in water supplies. Calcium and magnesium ions are the most common of the four. Name one of the other two ions.
Last Answer : ANSWER: IRON AND MANGANESE
Description : Which of the following building materials has the HIGHEST thermal conductivity? w) Southern pine wood x) common brick y) aluminum z) gypsum board or drywall
Last Answer : ANSWER: Y -- ALUMINUM
Description : "Fool's gold" is a common name for this mineral: w) halite x) cinnabar y) magnetite z) pyrite
Last Answer : ANSWER: Z -- PYRITE
Description : It is a common observation that naturally occurring processes have a particular direction associated with them. For instance, heat flows from a hot body to a colder body. The property of a system ... this natural direction of events is called w) energy x) entropy y) enthalpy z) equilibrium
Last Answer : ANSWER: X -- ENTROPY
Description : This bistable electronic device assumes one of two stable output states, depending upon the state of the most recently applied input signal. In computer systems this device is used for storing information. Name this common electronic device.
Last Answer : ANSWER: FLIP-FLOP or TOGGLE
Description : Evaporation from water surfaces exposed to air is not dependent of the: w) velocity of the wind x) humidity y) temperature z) depth of the water
Last Answer : ANSWER: Z -- DEPTH OF THE WATER
Description : The U.S. EPA recently concluded that environmental tobacco smoke should be considered (quote) w) "a possible human teratogen" x) "a priority air pollutant" y) "a known human carcinogen" z) "a possible human carcinogen"
Last Answer : ANSWER: Y -- A KNOWN HUMAN CARCINOGEN
Description : What naturally occurring radioactive substance present in indoor air is suspected as the second leading cause of lung cancer?
Last Answer : ANSWER: RADON
Description : Plants get their nitrogen from: w) rain x) the soil y) the air z) the bedrock
Last Answer : ANSWER: X -- THE SOIL
Description : The half life of tritium is about: w) 3,500 years x) 40 years y) 12.3 years z) 3.7 years
Last Answer : ANSWER: Y -- 12.3 YEARS
Description : Name the phase of quartz consistently found in meteorite impact craters, but rarely found in non-meteorite-related geological formations.
Last Answer : ANSWER: STISHOVITE
Description : he system of ............... generally ran one job at a time. These were called single stream batch processing. A) 40's B) 50's C) 60's D) 70's
Last Answer : B) 50's
Description : 10. Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change un burnt hydrocarbons into (a) carbon dioxide and water (b) carbon mono oxide (c) methane (d) carbon dioxide and methane.
Last Answer : (a) carbon dioxide and water
Description : Dante is the name of an eight-legged robot designed to repel into the crater of Erebus. This volcano is located in w) Italy x) the Hawaiian chain y) Antarctica z) Japan
Last Answer : ANSWER: Y -- ANTARCTICA
Description : Who is known as the Father of the Atomic Bomb? w) Albert Einstein x) J. Robert Oppenheimer y) General Leslie Groves z) Edward Teller
Last Answer : ANSWER: X -- J. ROBERT OPPENHEIMER
Description : In 1991, the frozen body of a late stone age man was found amazingly intact in the Alps near the Italian-Austrian border. Its age was determined to be about: w) 2,200 years x) 5,300 years y) 12,800 years z) 30,000 years
Last Answer : ANSWER: X -- 5,300 YEARS
Description : What is the phase relationship between the voltage and current in a capacitor?
Last Answer : ANSWER: X -- CURRENT LEADS BY 90 DEGREES
Description : The sun makes up approximately what percent of matter in our solar system? w) 17% x) 50% y) 85% z) 99%
Last Answer : ANSWER: Z -- 99%
Description : Deforestation is not a major environmental problem in w) the Amazon x) Borneo y) Oregon z) West Germany
Last Answer : ANSWER: Z -- WEST GERMANY
Description : Who was the first scientist credited with pointing out that certain gases could cause a greenhouse effect? w) John Tyndall x) Charles Darwin y) Roger Tory Peterson z) Stephen Jay Gould
Last Answer : ANSWER: W -- JOHN TYNDALL
Description : What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band? w) 3 to 30 Mega Hertz x) 30 to 300 Mega Hertz y) 300 to 3,000 Mega Hertz z) 30,000 to 300,000 Mega Hertz
Last Answer : ANSWER: Y -- 300 to 3,000 MEGA HERTZ
Description : If a quiet whisper is 10 decibels, then what is the average pain threshold in decibels for humans?
Last Answer : ANSWER: 120 DECIBELS (ACCEPT 110 TO 130)
Description : Which of the following is considered a renewable resource? w) Coal fired power plant x) Hydroelectric dam y) Combustion turbine facility z) Nuclear fission power plant
Last Answer : ANSWER: X -- HYDROELECTRIC DAM
Description : In the human body, what tendon attaches the gastrocnemius muscle to the calcaneus bone?
Last Answer : ANSWER: ACHILLES TENDON
Description : What is the name for the metric unit of pressure defined as 1 Newton per meter squared?
Last Answer : ANSWER: PASCAL
Description : TCDD (2,3,6,7-tetrachlorodibenzo(p)dioxin) is a toxic synthetic chemical. The most consistent adverse effect observed in exposed humans is: w) liver cancer x) birth defects y) disfiguring skin eruption z) an exaggerated sense of well-being
Last Answer : ANSWER: Y -- DISFIGURING SKIN ERUPTION (CHLORACNE)