Ripples in the Cosmic Microwave Background correspond to
A) matter density fluctuations.
B) temperature fluctuations.
C) energy fluctuations.
D) fluctuations in both matter and radiation.
E) imperfections in measurement techniques or equipment.
Question 2
Dissociation is the process in which
A) the bonds between atoms in a molecule are broken.
B) a molecule goes from the solid phase to the gas phase.
C) the bonds between electrons around an atomic nucleus are broken.
D) an element changes into another form.
E) an electron is shared between atomic nuclei.
Effect of a Black Hole’s Tidal Force on Infalling Matter
Cerebral Gray Matter and Schizophrenia
Pneumonia patient’s chest x-ray. Note the irregular areas of density.
The three states of matter: solid, liquid, and gas.
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