- Researchers think that:
Your answer:
50% to 70% of all cancer types are inherited.
30% to 50% of all cancer types are inherited.
10% to 30% of all cancer types are inherited.
70% to 90% of all cancer types are inherited.
- In the U.S., what are the two leading causes of lung cancer?
Your answer:
Prolonged smoking and over-consumption of fatty foods.
Prolonged smoking and excessive alcohol consumption.
Prolonged smoking and a sedentary lifestyle.
Prolonged smoking and prolonged exposure to radon gas and its byproducts.
- Which of the following has not been proven capable of mutating cells in the laboratory?
Your answer:
chemicals like benzene
anger
ultraviolet light
nuclear radiation
- If you wish to have the lowest risk of contracting coronary heart disease, then you'd like your ratio of HDL cholesterol to LDL cholesterol (HDL/LDL) to be:
Your answer:
very high.
one.
just below one.
very low.
- At the end of the day, what percentage of your daily calories "ideally" should be derived from fats, proteins, and carbohydrates, respectively?
Your answer:
60, 30, 10
30, 60, 10
60, 10, 30
30, 10, 60
- Toxic reactions may be associated with overconsumption of:
Your answer:
water-soluble vitamins.
fat-soluble vitamins.
enzymes.
water.
- Which of the following is not a factor that limits the use of groundwater deeper than about 2500 feet as a plentiful source of drinking water?
Your answer:
The cost of drilling a well is progressively greater the deeper the well.
The porosity of the host rocks generally decreases with depth so there is less water to be extracted.
The permeability of the host rock generally decreases with depth so the rate of groundwater flow into the well would be less.
Most water at these depths is mixed with petroleum.
- In which of the following places would you expect groundwater to consistently lie closest to the surface?
Your answer:
Adjacent to a marsh.
At the top of a hill.
On the side of a hill.
On the banks of a river.
- Which of the following rock types usually make the best aquifer?
Your answer:
claystone
schist
granite
sandstone
- Fine-grained sewage particles and food waste can be most effectively naturally filtered from water if the water passes through what material?
Your answer:
limestone
poorly sorted gravels
well-sorted sands
granite
- Each ozone molecule consists of how many oxygen atoms bonded together?
Your answer:
4
1
2
3
- Depletions in stratospheric ozone are likely leading to increases in the incidence of what cancer type?
Your answer:
pancreas
lung
skin
brain
- What human-produced substances are thought to be most significantly depleting stratospheric ozone levels?
Your answer:
HCFCs
CFCs
HFCs
ABCs
- Which of the following gases is the least significant contributor to the Earth's greenhouse effect?
Your answer:
water vapor
methane
carbon dioxide
ozone
- The Earth's greenhouse effect primarily impacts what layer of the Earth's atmosphere?
Your answer:
mesosphere
exosphere
stratosphere
troposphere
- Which of the following is not classified as a Giant Planet?
Your answer:
Mars
Jupiter
Neptune
Saturn
- What Earth process seems to have occurred on all the Terrestrial Planets?
Your answer:
chemical weathering
tourism
volcanism
continental drift
- The pitch of a train whistle changing as the train moves away from you is known as the:
Your answer:
Bernoulli Effect.
Doppler Effect.
Eigen Effect.
Auditory Effect.
- Observations by astronomers that the wavelengths of galaxy spectra were shifted toward the red end of the visible spectrum have been interpreted to mean that:
Your answer:
the universe is contracting.
the universe is expanding.
the universe is in a steady state.
the universe is oscillating between expansion and contraction.
- The combination of atomic structures in the Sun's core, resulting in release of energy and the generation of new elements, describes what process?
Your answer:
chemical transformation
microwave conversion
nuclear fusion
nuclear fission
- The subsurface boundary between the water unsaturated and saturated zones is known as the _____________.
Your answer:
- What type of telescope would be used to search for black holes?
Your answer:
- Which of the combustion pollutants is colorless, odorless, and highly poisonous?
Your answer:
- Prolonged exposure to elevated levels of what colorless, odorless gas may encourage lung cancer development?
Your answer:
- What's the cancer type responsible for the most U.S. female deaths?
Your answer:
- What's the cancer type contracted by U.S. males in the highest frequency?
Your answer:
- Cholesterol is found only in foods and food byproducts originating from plants, or animals?
Your answer:
- What natural substance, long used as a fire retardent ingredient, may produce minute airborne fibers whose ingestion are linked to various lung diseases?
Your answer:
- Vitamins are members of what organic compound class - fats, proteins, or carbohydrates?
Your answer:
- What foul-smelling combustion pollutant is often used as a binding agent in adhesives, is found in products like Bakelite plastic, and may be carcinogenic?
Your answer: