Which of the following statements best describes cosmic microwave background radiation? a. the wind left over from the big bang b. the heat and energy left over from the big bang c. the heat and light left over from the big bang d. the original particles of radiation that were present during the big bang

The answer is; C

Cosmic Microwave Background is the remnants of the big bang. Due to early conditions on the universe, of high pressure and temperature, atoms did not exist because they were easily split into subatomic particles. The highly ionized ‘cloud’ also scattered photons that still travel in the impenetrable ‘fog’ until today. Because the universe cooled, the background radiation can only be viewed in microwave wavelength.

i dont know

explanation:

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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