A) Huge cloud of gas and dust
B) A star
C) A satellite
D) A constellation
A) Huge cloud of gas and dust
B) A star
C) A satellite
D) A constellation
A) 10.8 billion years
B) 13.8 billion years
C) 15 billion years
D) None of these
A) Cosmic rays
B) Gamma rays
C) Microwave radio signals
D) Infrared radiations
A) Shrinking
B) Freezing
C) Expanding
D) None of these
A) Origin of humane
B) Origin of universe
C) Origin of sun
D) Origin of earth
A) George Lamaitre
B) Edwin Hubble
C) Fred Hoyle
D) None of these
A) Galileo Galiliee
B) John Kepler
C) Copernicus
D) Aristotle
A) I million km
B) 1.4 million km
C) 3 million km
D) 2.4 million km
A) Planet
B) Comet
C) Star
D) Aurora
A) 90% Hydrogen & 10% Nitrogen
B) 50% Hydrogen & 50% Nitrogen
C) 80% Hydrogen & 20% Nitrogen
D) It is vacuum