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EmpressDina EmpressDina
wrote...
Posts: 470
Rep: 0 0
6 years ago
About how many times more luminous than our Sun is a young solar mass protostar just beginning convective contraction?
 
  A) 2-5
  B) 5-10
  C) 10-100
  D) 100-1000
  E) a million

Question 2

Which of the following statements about Mars is not true?
 
  A) We have landed spacecraft on its surface.
  B) It is considered part of our inner solar system.
  C) We could survive on Mars without spacesuits, as long as we brought oxygen in scuba tanks.
  D) It has some liquid water today, but used to have large amounts of flowing water.

Question 3

All the terrestrial planets lie inside the asteroid belt.
 
  Indicate whether the statement is true or false

Question 4

From inside out, which is in the correct order for the structure of the Sun?
 
  A) Core, convective zone, radiative zone
  B) Photosphere, radiative zone, corona
  C) Radiative zone, convective zone, chromosphere
  D) Core, chromosphere, photosphere
  E) Convective zone, radiative zone, granulation

Question 5

In order to have a comet named after you, you have to
 
  A) calculate its orbit and predict when it will return.
  B) publish a picture of it in an astronomical journal.
  C) be one of the first three discoverers who report it to the International Astronomical Union (IAU).
  D) be a well-known astronomer.
  E) be and do all of the above

Question 6

While yet unproven, the proposed WIMPS would be:
 
  A) massive like neutrons, but more elusive than neutrinos.
  B) made of only strong magnetic fields.
  C) rapidly decaying due to the weak nuclear force.
  D) changing charges and polarities too rapidly to pin down.
  E) the basic building blocks of neutrons and protons.
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Replies
wrote...
6 years ago
Answer to q. 1

C

Answer to q. 2

C

Answer to q. 3

TRUE

Answer to q. 4

C

Answer to q. 5

C

Answer to q. 6

A
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