Dissolued arugen in water comes from
w Photosynthesis d aquatic plants
beillusion d atmospheric 'origen
o Ocidation
d Both a & b
Answers
Answered by
0
Answer:
d is the correct answer
Answered by
2
Answer:
A. Van Neil in 1931 showed that photosynthetic bacteria fixed CO
2
in the presence of H
2
S and postulated that plants evolve O
2
by splitting H
2
O, not CO
2
.
B. Robin Hill in 1937 isolated chloroplast suspended in water in presence of a suitable hydrogen acceptor (for example, ferricyanide) which evolve oxygen in presence of light. He demonstrated that the source of O
2
during photosynthesis is water and not CO
2
.
C. Ruben and Kamen in 1941 used radioactive oxygen
18
O and supplied water as H
2
18
O and proved that oxygen evolved was part of water.
Hence, all the statements are correct.So, the correct answer is D.
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