1) This theory tries to explain how the universe and energy were formed. a) Nebular Theory b) Big Bang Theory c) Endosymbiotic Theory 2) According to scientists, the universe is how old? a) 4.6 myo b) 13.7 byo c) 1 myo 3) What are the pieces of evidence to support the Big Bang Theory? a) stars colliding and shifting b) black holes and xrays c) background cosmic radiation and the shift in the spectrum 4) According to scientists, the Big Bang was not an explosion but a what? a) deflation b) expansion c) random jumbling of things 5) The nebular theory tries to answer the question of how what formed? a) Our sky b) Our universe c) Our solar system 6) According to the nebular theory, what force caused the inner planets to form? a) momentum b) speed c) gravity 7) Which is a correct description of how the primitive earth likely looked? a) blue skies and sunny b) calm water and cool c) volcanic activity and hot 8) Scientists consider the first life forms on earth to be what? a) archaebacteria b) eubacteria c) fungi 9) This theory tries to explain how eukaryotic cells arose. a) Big Bang b) Endosymbiotic c) Nebular 10) According to scientists, the earth is likely ________ years old. a) 13.7 myo b) 4.6 myo c) 10 myo

The Big Bang and Nebular Theories

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