Biology
What is the normal pH of human blood?
7.4
What term is used to describe silver which contains 7.5% copper?
Sterling
A quarter of a wavelength is equal to how many degrees of phase?
90 degrees
What is the name of the phenomenon that causes an accumulation of heat in the lower atmosphere because of the absorption of longwave radiation from the Earth's surface?
Greenhouse effect
The study of the origin and evolution of the universe is known as
Cosmology
Once the erythrocytes enter the blood in humans, it is estimated that they have an average lifetime of how many days.
120 days
Which halogen has the largest atomic radius:
Astatine
What mechanical and electronic device has a name derived from a Czechoslovakian word meaning "work; compulsory service"?
ROBOT
During which period, in the earth's history, did MOST dinosaurs
become extinct?
w) Carboniferous
x) Cretaceous
y) Quaternary
z) Triassic
X
Which type of star is maintained by the pressure of an electron gas?
White Dwarf
DNA present in a structural gene that does not seem to have a specific coding function is known as what?
Intron
How many milligrams are in one metric carat?
200 Miligrams
In the sun, helium is produced from hydrogen by:
Fusion
What is the name given to a flat-topped plateau bordered on all sides by cliffs?
MESA or BUTTE
Io, Europa, Ganymede and Callisto are satellites of what planet?
Jupiter
What is the name given to the jellylike substance filling the chamber behind the lens of the human eye?
Vitreous humour
What class of organic compounds is characterized by an -OH group bonded to an alkyl group?
Alcohol
An electroscope charged WITHOUT contacting a charged body is charged by:
Induction
A troughlike downfold of strata is called a:
Syncline
Name the outer boundary of the sun's magnetic field?
Heliopause
Into which acid is glucose broken down in the first stage of carbohydrate metabolism?
Pyruvic acid
DJ - What is the oxidation number of nitrogen in NaNO2:
+3 / accept 3
DJ - What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously?
Triple point
The name of a rapid rise of coastal water that accompanies the arrival of a cyclone is called:
Storm surge
The largest moon in our solar system has an atmosphere that is denser than the atmosphere of Mars. The name of this moon is:
Titan