The human heart beat has two phases, systolic and diastolic. Which of these presents the normal pressure of between 70 and 90 mg. of mercury?
A phobia is a fear. Fear of spiders is arachnophobia; fear of the sun is heliophobia. What such name is given to the fear of open space?
The numbers 121 44 21 W and 38 32 58 N describe which of the following?
a) Measurements used by a metallurgist in the formulation of an alloy;
b) Measurements used by a land surveyor to describe a location in central California, USA;
c) Measurements used by a meteorologist to describe the character of a wind.