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Home Q & A Board Science-Related Homework Help Physics Astronomy
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Nwere Nwere
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6 years ago
How many nuclear reactions occur in a proton-proton chain?
 
  a. two
 b. three
  c. one
 d. four
 e. five

Question 2

Which statement about the behavior of Universe geometries is correct?
 
  a. Closed and open universes expand forever.
 b. Closed universes expand and then contract.
 c. Only flat universes expand forever.
 d. Flat and open universes expand and then contract.
  e. Only flat universes expand and then contract.

Question 3

The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy.
 
  a. meridional flow
 b. Maunder minimum
  c. dynamo effect
 d. reconnection event
  e. Zeeman effect

Question 4

The main criterion for deciding between Universe geometries is ____.
 
  a. density
 b. mass
 c. temperature
  d. age
 e. inflation
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yjiang5yjiang5
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6 years ago
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Nwere Author
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#2
6 years ago
Thank you Jesus, my teacher is bad at explaining
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#3
6 years ago
Praise the LORD ha ha No worries
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