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YDT • İngilizce 3. ADIM • 3. DENEME

78. (I) Neuroscientists at Boston University have published 80. (I) One of the most important environmental impacts
a novel method for improving memory in the elderly. of mineral production is the large amount of energy
(II) The technique targets brain circuits responsible for required to mine and refine minerals, especially if they
short- or long-term memory by applying specific are refined from low-grade ore. (II) Gold is currently
frequencies of mild electrical current to the scalp at being extracted from low-grade ores, for instance,
appropriate spots. (III) Twenty minutes of stimulation in Nevada. (III) The region’s farmers and ranchers
daily for four days in a row boosted both short- and are concerned that gold mining is decreasing the
long-term memory ability in research participants groundwater used for irrigation. (IV) For every metric
aged 65 to 88, and the benefit persisted for at least tonnes of rock that is dug up and crushed, as little
one month following the experimental treatment. as 0.8 g of gold is refined. (V) Enormous quantities
(IV) Throughout the study, they had to learn lists of of energy are required in order to dig and crush the
words that they would have to remember a month tonne of rock, and most of this energy is obtained by
later. (V) This method opens up a whole new area of burning fossil fuels, which depletes energy reserves
possible treatments for Alzheimer’s disease and other and produces large quantities of climate-changing
memory problems. carbon dioxide.

A) I B) II C) III D) IV E) V A) I B) II C) III D) IV E) V

,

79. (I) It is fascinating that we are still uncovering Mayan
cities and pyramids to this day. (II) At Tonina in
Mexico, a thousand-year-old pyramid was recently
discovered, hidden beneath a hill that had long been
assumed to be natural. (III) The pyramid appears to
have been constructed in five phases, beginning in the
sixth century and continuing periodically into the tenth.
(IV) Two additional cities were uncovered from beneath
thick vegetation also in Mexico, close to Campeche.
(V) Archaeologists believe that there are still several
cities and pyramids which remain concealed in the
area and are covered with jungle.

A) I B) II C) III D) IV E) V

TEST BİTTİ.
12. SINIF 92
CEVAPLARINIZI KONTROL EDİNİZ.