Questões de Concurso Sobre inglês
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In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.
Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.
Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.
Internet: <dataconomy.com/> (adapted).
According to the preceding text, judge the following items.
The adjective “groundbreaking” (fourth sentence of the first
paragraph) could be correctly replaced by “conventional”,
without changing the meaning of the text.
In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.
Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.
Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.
Internet: <dataconomy.com/> (adapted).
According to the preceding text, judge the following items.
The article confirms that the long awaited room temperature
superconductor has finally been discovered.
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
The word “overshadowed” (first sentence of the second
paragraph) means, in the context of text CB1A2-I, “made
less noticeable”.
The pronoun “they” (last sentence of the last paragraph) refers to the word “assumptions”.
Based on text CB1A2-I, judge the following item.
According to Cathryn Carson, Oppenheimer’s work on
neutron stars and black holes was meaningless at the time
it was developed.
Based on text CB1A2-I, judge the following item.
Oppenheimer’s paper on black holes received little attention
at the time it was published.
"Up to 38 percent of the remaining Amazon has been affected by human actions, researchers from Brazil's University of Campinas (Unicamp), the Amazon Environmental Research Institute (IPAM), National Institute for Space Research (INPE), and Lancaster University found"
Assinale a alternativa que apresenta sentença cujo uso da expressão "up to" é semelhante ao empregado no trecho apresentado.
'A Spiraling Loop of Feedbacks':
Worst-Case Scenario for Amazon Rainforest
A paper to be published in the Journal Science on January 27 has found that humans have degraded more than one-third of the remaining trees in the Amazon rainforest. This degradation could eventually lead to "a spiraling loop of feedbacks," Jos Barlow, a professor of conservation science at Lancaster University in the U.K. and co-author of the paper, told Newsweek.
Up to 38 percent of the remaining Amazon has been affected by human actions, researchers from Brazil's University of Campinas (Unicamp), the Amazon Environmental Research Institute (IPAM), National Institute for Space Research (INPE), and Lancaster University found.
The degradation of this area-equivalent to 5.5 times the size of the state of California-releases carbon emissions equivalent to or greater than those from deforestation.
The Amazon contributes 16 percent of all the land-based photosynthesis in the world, and strongly regulates global carbon and water cycles, sucking in carbon dioxide and producing oxygen. Additionally, despite only covering around 0.5 percent of the Earth's surface, the Amazon is home to over 10 percent of all named plant and vertebrate species on Earth.
"Healthy rainforests provide amazing habitat for biodiversity-this is what the Amazon is most famous for," Sally Thompson, an ecohydrologist at The University of Western Australia, told Newsweek. "They usually support clean water in rivers, make it rain, and cool the surrounding area. You can hunt, harvest timber or foods sustainably from healthy and well-managed forests. And a healthy forest can often recover from disturbance. Degraded forests aren't as good at doing any of those things, and often they struggle to recover from disturbance."
Deforestation involves a loss of the forest canopy and a change in land use (e.g., from forest to agriculture or urban land use), while degradation is a process affecting the remaining forests. Degradation essentially means that there is still forest in place but it is not as healthy or as good at providing benefits for the environment or for people.
THOMSON, Jess. 'A Spiraling Loop of Feedbacks': Worst-Case Scenario for Amazon Rainforest. Newsweek (online), 26jan. 2023 (adaptado).
"Up to 38 percent of the remaining Amazon has been affected by human actions, researchers from Brazil's University of Campinas (Unicamp), the Amazon Environmental Research Institute (IPAM), National Institute for Space Research (INPE), and Lancaster University found."
Assinale a alternativa que apresenta sentença cujo uso da expressão "up to" é semelhante ao empregado no trecho apresentado.

Internet: <www.britannica.com> (with adaptations).
In the construction “whence the state derives its name.” (lines 5 and 6) “whence” means from where and its is a possessive adjective related to “the state”.

Internet: <www.britannica.com> (with adaptations).
In the first paragraph of the text the preposition “by” (lines 1 and 2) can be correctly substituted by the preposition from in all its occurrences.