The compostiton of the atmosphere & most of its physical
properties vary with what?
altitude
When can an atom be divided?
never
What class of drugs act on the central nervous system which
may be sedatives, anesthetics or anticonvulsants?
barbiturates
Most oceanic islands of volcanic origins, such as Hawaii,
are made of what type of rock?
basalt
The science of nature, cpmposition & properties of material
substances, and their transformations and interconversions
is ?
Chemistry
The partial or total obscurement of one celestial body by
another is an
Eclipse
A specialty within surgery, dealing with bone and soft
tissue disease, damage and deformity is -
Orthopedics
What is the female reproductive organ?
Ovary
The gaseous non-metal in group VIA of the peridic table,
comprising 21% by volume of the atmosphere and about 50% by
weight of the earths crust is--
Oxygen
What is partly decayed plant material found in layers,
usually in marshy areas?
Peat
The loud noise generated in the form of a shockwave when an
airplane traveling faster than the speed of sound overtakes
the pressure waves it produces is what?  (2 words)
Sonic Boom
What is the rate at which the position of a body changes,
expressed with the respect to a given direction?
Velocity
Hydrocarbons in which hydrogen atoms are replaced
(wholly or in part) by flourine are called?
Fluorocarbons
What is the study of the chemistry of the Earth (and other
planets) called?
Geochemistry
What is the brief involuntary contraction of the diaphragm
that may follow dietary, alcoholic excess and rapid
eating called?
Hiccups
What is the scientific study of language called?
Linguistics
What are the electromagnetic radiation of the wave length
between 1mm and 30 cm called ? (used in radar, tele-
communications, spectroscopy and cooking)
Microwaves
What is a colorless, oily liquid, and alkaloid occuring in
tobacco leaves and extracted from tobacco refuse called.
Nicotine
What is a shorter word (abreviation) for
dichlorodiphenyltrichloroethane, a synthetic contact
insecticide? (3 letters)
DDT
A group of diseases in which some body cells change their
nature and start to divide uncontrollably and may revert to
an undifferentately type is called what?
Cancer
What is the study of the atmosphere abd its phenomena,
weather & climate called?
Meteorology
The crab nebula is located in what constellation?
Taurus
What are the sound waves with frequencies above what humans
can hear (> 720 kHz)
Ultrasonics