16. The study of creation of the Universe is called ...................
a) Astronomy
b) Cosmogony
c) Geology
d) Geophysics

17. the study of genetics of cell is called ....................
a) Cytogenetics
b) Genetic engineering
c) Cytology
d) Cellular biology

18. ........................ showed that the space between galaxies is increasing and the universe is expanding.
a) Issac newton
b) A. Einstein
c) Plato
d) Edwin Hubble

19. According to big Bang theory, Universe came into existance about ........... years ago.
a) 15-20 billion
b) 5-6 billion
c) 15-20 million
d) 50-60 billion

20. Our galaxy is ----------------------- in shape.
a) Spherical
b) Elliptical
c) Spiral
d) irregular