Question

1-Ft I
Q Nol
Section A: Reading (20 Marks)
A Read the passage carefully and answer the following questions,
(8 marks)
II:+-+
YOUNG SCIENTIST: GITANJALI RAO
1) Twelve-year-old scientist Gitanjali Rao has been inventing since she was in kindergarten, Rao
says that she has more than eight inventions, but it was Tethys - a 3D printed device that
harnesses carbon nanotubes and a mobile app to test water for lead contamination in as little as
ten seconds - that won her the title of America's Top Young Scientist, and $25,000.
Rao says she was inspired to begin work on Tethys when she learned abour communities
in Michigan dealing with the devastating effecrs of lead-contaminated water. After talking
about the issue with her family, Rao put herself in the shoes of those who were affected by
contaminated water. "I was thinking about how they felt when they actually found out that
there was lead in their water - that would be a really scary thought."
3) She considered the seriously troubling side effect of lead exposure, including rashes, headaches,
nausea, seizures, and even death, and set out to use her inventing experience to try help the
residents detect the water quality. After researching water quality detection techniques, the
precocious pre-teen found that she would need some hard-to-find supplies, including carbon
nanotubes, chloride and lead acetate. Fortunately, Rao's parents lent a helping hand.
She submitted a video application to the Discovery Education 3M Young Scientist Challenge
and was selected as one of the ten finalists. She won the top prize after impressing the judges
with her flawless presentation. Rao was named America's Top Young Scientist and handed a
cheque for $25,000.
Science is not Rao's only passion. "I actually love business," she says. "I like inventing, I like
researching but I also like marketing." She's developing a business model that she hopes will
make Tethys financially accessible for all families. "Currently, the device costs $20, but when it's
manufactured in bulk, it will cost significantly less," she says.
6). Now that Rao has some prize money in her pocket, she plans to invest in her business, her
community and her education.
- Abigail Hess, CNBC (modified)
1.what does harnesses mean in paragraph 1
a.fastens
b.utilises
c.saddles
D yokes

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Answer 1

Answer:

a) fastens is the answer I think.

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