What was the nationality of the first persons who we know speculated about "elements"?
a. Chinese
b. Egyptian
c. Greek
d. Roman
c
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The term probability is associated with the model of the atom proposed by ______________
Fill in the blank(s) with correct word
In searching for life in the solar system, which basic requirement of life is the most fundamental and the one we always look for?
A) the presence of organic matter B) the presence of an energy source C) the presence of a liquid medium, most likely water D) the presence of oxygen
The angular size of an object increases as the distance to the observer increases.
Answer the following statement true (T) or false (F)
The kilogram is currently defined as
A) the mass of a platinum-iridium cylinder kept in Sévres, France. B) the weight of a platinum-iridium cylinder as measured on the Earth's moon. C) the mass of 5.9786332 × 1026 protons. D) the mass of one liter of pure water, free of air, at standard temperature and pressure. E) the mass of a cube of pure water, free of air, 10 cm on each side, at standard temperature and pressure.