4. Q. 1. What was the hypothesis proposed by
Hoyle and Wickramasinghe?
Ans: the hypothesis was that the inter-stellar are
full of panspermia i.e. live organisms. They felt
that some of these bacteria and viruses could
come on the Earth riding the comets.
Q.2. Taking that example, … has any
microorganisms.
a) What is the example?
Ans: The example of 1918 was Influenza
epidemic that was spread very fast across the
globe.
5. b) Who gave the example and why?
Ans: Fred Hoyle and N.C. Wickramasinghe gave
the example to show that microorganisms
can come to Earth from outer space.
c) What did the test prove?
Ans: The test proved that bacteria existed in
outer space.
Q.3. There are two suggestions about how
bacteria could have been found in space:
a) Bacteria could… from Earth.
6. b) Bacteria could have…great heights.
How does Dr. Narlikar respond to these
suggestions? Explain.
Ans: He didn’t believe in either of the
explanations. As far as the idea of bacteria
going up from Earth was concerned, he
argued that it was impossible for bacteria to
reach a height of 14km. He also didn’t believe
that bacteria could have come from debris of
man-made satellites as estimated debris was
too small to explain what was found.
7. Q.4. Dr. Narlikar is certain that SARS
originated from comets, meteorites, and
other extraterrestrial visitors. TRUE or
FALSE.
Ans: False.
Q.5. Do you think they were able to test the
bacteria? How did they do it?
Ans: They identified bacteria & found it to be
similar to terrestrial bacterium. They give a
theory on the existence of bacteria but they
couldn’t be able to test the samples for viruses.
8. Q.6. Does Dr. Narlikar say that there is
a curative medicine for the bacteria
that have evolved in an alien space?
YES or NO.
Ans: No.
9. TODAY’S DIARY
Learn all the Question/Answers and
write them on the Workbook Pg# 24 &
25.
Also solve the exercise (Learn words)
on Pg# 25.
