The formation of protons over neutrons (thus producing about a 7:1. ratio) was favored in the early universe because
A) it takes more energy to create a neutron from a proton than a proton from a neutron.
B) it takes more energy to create a proton from a neutron than a neutron from a proton.
C) the more massive neutrons made better targets for nucleon collisions.
D) the positively charged protons were repelled away from the explosion.
A
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EPA enforcement options include
A. fines, incarceration, and revoking an existing permit. B. writing more strict regulations for those that do not comply with current regulations. C. congressional inquiry. D. negotiation, tax incentives, and grants.
In the western Pacific, a large tropical storm is called a typhoon.
a. true b. false
Which of the following elements might be the fuel in a fusion reaction?
A) helium B) hydrogen C) iron D) uranium
In chemical terms, water (H2O) would best be described as a(n):
A. Element B. Compound C. Ion D. Atom E. Isotope