Why do we think tiny quantum ripples should have been present in the very early universe?
A) The shock wave of the Big Bang caused ripples that expanded outward with time.
B) The energy released when the strong force froze out of the GUT force caused shock waves that produced ripples in the universe.
C) Matter and antimatter particles that spontaneously formed from high-energy photons caused perturbations in the radiation field.
D) The annihilation of matter and antimatter particles caused tiny explosions that perturbed the radiation field.
E) Quantum mechanics requires that the energy fields at any point in space be continually fluctuating as a result of the uncertainty principle.
Question 2
In Einstein's General Theory of Relativity, gravity is explained as
A) action at a distance
B) the curvature of spacetime
C) a basic component of the atom
D) a force-carrying particle called the graviton
Continental Drift—An Early Idea
Reconstructed West Front of the Altar from Pergamon (In Present-day Turkey)
Tiny embryonic stem cells
How many hydrogen ions (H+) are present and on what side of the chemical equation?
Acanthostega, Early Amphibian