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The nebular theory of the origin of the solar system was proposed by
Square Yard
a unit of area measurement equivalent to a square measuring one yard on each side.
Labor
The body of work performed by human beings, often in exchange for payment, significant in economics for its role in production.
Materials
Substances or components used in the production of goods or in the performance of services.
Square Yards
A unit of area measurement equal to a square measuring one yard on each side, used in both the U.S. customary and British imperial systems.
Q1: What observation has prompted astronomers to ponder
Q16: The failure of improperly adapted life forms
Q18: _ is the thermonuclear fusion of hydrogen
Q22: In observations,_ has a heavy element core,and
Q30: The planets all lie in nearly the
Q33: Edwin Hubble found the Great Nebula in
Q34: That Mercury has a large iron core
Q47: Pressure (P)waves can travel through a liquid,but
Q66: The type I,or gas,tail of a comet<br>A)
Q68: Most terrestrial planets have portions of their