Question

scarce, so mahdjoubi came up with an idea for reusing the flow. \id hi
experience,\ he says.
never thought about doing something like this if i didnt have that nasa
8 to rapidly purity and reuse water, he hit on an especially thorough
water filtration technology developed in part with nasa funding, known
as nanoceram.
9 other filters have micropores tiny enough to physically filter out
bacteria and even viruses, but these are painfully slow. a material
invented by argonide corporation, however, made up of positively
charged microscopic alumina fibers, can remove virtually all
contaminants, including bacteria and viruses, despite having significantly
larger pores — allowing a much higher flow rate. the positive charge of
the fibers attracts and traps microorganisms and other contaminants,
which generally carry a negative charge. activated carbon in the filter
aids in snaring particulate, chemical, and soluble contaminants.
10 under two small business innovation research contracts from
johnson in the early 2000s, argonide optimized its nanofibers for
strength and virus adhesion, and built, tested, and validated full-scale
filter models. since then, other companies have used the filters in water
bottles, portable humanitarian units, and industrial water purification. and
now mahdjoubi has incorporated the filter into a recirculating shower
known as oas — swedish for \oasis\ — built and marketed by his new
company, orbital systems.
11 the shower starts with less than a gallon of water and circulates it at
a rate of three to four gallons per minute, more than most
conventional showers provide. the system checks water quality 20 times
per second, and the most highly polluted water, such as shampoo rinse,
is jettisoned and replaced. the rest goes through the nanoceram filter
and then is bombarded with ultraviolet light before being recirculated.
the swedish institute for communicable disease control has verified
that the recycled water is cleaner than tap water.
12 and because the reused water is already warm, it takes minimal
energy to heat it back to the target temperature.
13 theres a general assumption you cant do anything about water
conservation without compromising your life quality,\ says mahdjoubi.
\but we dont tell people to stop showering, and we dont destroy their
experience. we enhance it with a higher flow rate. the ability to save
without sacrifice, i think, is the most important part of our value
proposition.\
select the correct answer.
which two details provide the best evidence that the oas recirculating shower works more effectively and is more eco-friendly than traditional showers?
\the swedish institute for communicable disease control has verified that the recycled water is cleaner than tap water.\ (paragraph 11)
\in the longer term, he wants to enable an entire habitat that runs on closed loops, recycling as much and using as little water as possible...\ (paragraph 15)
\a material invented by argonide corporation, however, made up of positively charged microscopic alumina fibers, can remove virtually all contaminants...\ (paragraph 9)
\the company has sold several thousand units, so far mostly to hotel chains and real estate developers, and the showers are becoming available to individual consumers...\ (paragraph 15)
\and because the reused water is already warm, it takes minimal energy to heat it back to the target temperature.\ (paragraph 12)

Explanation:

The first option shows that the recycled water is already warm, which means less energy is needed to heat it, making it eco - friendly. The second option indicates that the system has sold many units, showing its effectiveness in the market.

Answer:

• "And because the reused water is already warm, it takes minimal energy to heat it back to the target temperature." (paragraph 12)
• "The company has sold several thousand units, so far mostly to hotel chains and real estate developers, and the showers are becoming available to individual consumers..." (paragraph 15)