17.theory of eternity of life was proposed by
a. Francesco Redi
b.
Oparin
c. Anaximander
d. Preyer
18. Theory of catastrophism was proposed
by
a.cuvier
b. Oparin and Haldane
c. Preyer
d. Richter
19. Theory of
panspermia was proposed by ....
a. Arrhenius
b. Richter
c. Oparin and
Haldane
d. Pasteur .
20. Therory of Abiogenic origin of life was proposed
by
a.Oparin
b.Haldane
c.Both a and b
c.Cuvier
21. The early molecular
forms on earth were
a.Water and Hydrogen cyanide
b.Carbon dioxide and
carbon monoxide
c.Methane and ammonia
d.All of these
22.Which gases were
used by Miller and Urey in their experiment
a. Methane,ammonia, water
vapours,hydrogen
b. Methane,ammonia,nitrogen and water vapours
c.
Methane,nitrogen,hydrogen and water vapours
d. Ammonia,carbon
dioxide,nitrogen and water vapours.
23. Origin of life took place in
a.
Air
b. Soil
c. Water
d. On other planet
24.Which molecule was absent in
the atmosphere at the time of origin of life
a.methane
b.oxygen
c.hydrogen
d.carbon dioxide
Ans c3: 17d 18a 19a 20c 21 d 22 a 23c 24b.
BY : ASHWANI KUMAR BIOLOGY TEACHER VIGYAN TUTORIALS PATELNAGAR PHAGWARA 9646388266