What causes the arcs and bubble shapes in the dust and gas distribution of the Orion Nebula?
A.) Previous generations of supernovae.
B.) Photon pressure of newly formed stars.
C.) Gravity waves from black holes.
D.) Stellar wind from local stars.
E.) Synchrotron radiation.
Ans: D.) Stellar wind from local stars.
You might also like to view...
The specific heat capacity of water is about twice the specific heat capacity of ice. The amount of heat required to boil 1 kg of water is twice the amount of heat required to melt 1 kg of ice
a. True b. False Indicate whether the statement is true or false
One of the reasons that gold is a rare element is that:
A) it has a very low atomic mass. B) it has a very low atomic number. C) gold atoms were absorbed during supernova explosions. D) gold atoms are made only by short-lived nuclear reactions.
Which of the following types of Universe has no center and no edge?
a. closed b. flat c. open d. All of the other choices are correct.
On a planet where atmospheric gases are yellow, distant snow covered hills would look
A) bluish. B) greenish. C) yellowish. D) reddish. E) untinted.