Approximately how long does the protostellar stage last for a starlike our Sun?
A) 300 years
B) 30,000 years
C) 100,000 years
D) 30 million years
E) 30 billion years
D) 30 million years
You might also like to view...
The uncompressed density of a planet in our solar system
a. is greatest for the Jovian planets. b. is greatest for the planets closest to the sun. c. is greatest for the planets furthest from the sun. d. is greatest for the planets with the largest mass. e. is greatest of the planet with the largest radius.
Comparison of the number of sunspots and the surface temperature of Earth shows a correspondence right up to the present day.
Answer the following statement true (T) or false (F)
The constellations of the zodiac fall along
A) the ecliptic. B) the celestial equator. C) lines of longitude. D) lines of latitude.
Which of the above substances would have the largest dipole?
A) a B) b C) c D) Each has the same size dipole. E) None of the molecules has a dipole.