Download ultrasonic sound waves with frequencies above 20,000 Hz

ultrasonic
ultraviolet
radiation
ultraviolet waves
umbilical cord
unconformity
uniformitarianism
unsaturated
hydrocarbon
unsaturated
solution
upwarped mountains
upwelling
ureter
urethra
urinary system
urine
uterus
sound waves with frequencies above 20,000
Hz.
a type of energy that comes to Earth from
the Sun, can damage skin and cause
cancer, and is mostly absorbed by the
ozone layer.
electromagnetic waves with wavelengths
between about 400 billionths and 10
billionths of a meter.
connects the embryo to the placenta;
moves food and oxygen from the placenta
to the embryo and removes the embryo’s
waste products.
gap in the rock layer that is due to
erosion or periods without any
deposition.
principle stating that Earth processes
occurring today are similar to those that
occurred in the past.
compound, such as ethene or ethyne, that
contains at least one double or triple
bond between carbon atoms.
any solution that can dissolve more
solute at a given temperature.
mountains formed when blocks of Earth’s
crust are pushed up by forces inside
Earth.
vertical circulation in the ocean that
brings deep, cold water to the ocean
surface.
tube that carries urine from each kidney
to the bladder.
tube that carries urine from the bladder
to the outside of the body.
system of excretory organs that rids the
blood of wastes, controls blood volume by
removing excess water, and balances
concentrations of salts and water.
wastewater that contains excess water,
salts, and other wastes that are not
reabsorbed by the body.
in female humans, hollow, muscular, pearshaped organ where a fertilized egg
develops into a baby.