Foram encontradas 69 questões.
Em um grupo formado por 11 pessoas, no máximo 5 pessoas não possuem doutorado, nem seguem uma carreira acadêmica.
Tal característica pode ser recolocada, de modo logicamente equivalente, pela seguinte assertiva:
Provas
Dois pontos do plano cartesiano P(x,y) e Q(x,y) são tais que suas coordenadas satisfazem à equação algébrica:
\( x \)2 + \( y \)2 = 9
A maior distância possível entre P e Q mede
Provas
Durante a análise de séries temporais, um pesquisador propõe a hipótese de que determinadas condições da variável W influenciam positivamente a diversidade de elementos Z. Para testar essa hipótese de modo estatisticamente robusto, o objetivo metodológico mais adequado é
Provas
Durante a revisão de um relatório técnico, um pesquisador observa que a tabela de resultados apresenta o título abaixo da tabela, omite as unidades de medida e substitui valores “não determinados” por zero.
Considerando as normas e boas práticas de comunicação científica, a forma correta de apresentação seria
Provas
Para elaborar um mapa preliminar da distribuição de uma propriedade Y em uma área de 5 km², a equipe deve empregar um plano amostral exploratório.
A estratégia mais adequada é
Provas
Um grupo de pesquisadores planeja conduzir um estudo quantitativo de longo prazo, com o objetivo de identificar possíveis relações entre variáveis observadas em um sistema natural monitorado por cinco anos. O êxito do estudo depende de uma sequência metodológica coerente e aderente aos princípios da pesquisa científica.
Assinale a opção que apresenta a ordem lógica e tecnicamente adequada para o desenvolvimento do projeto.
Provas
Um pesquisador, ao analisar dados de concentração de uma substância X em amostras coletadas em uma região de estudo, observa valores elevados em uma área específica, sem fontes aparentes na superfície. A anomalia coincide com uma zona onde estudos prévios identificaram condições geológicas favoráveis ao transporte de substâncias.
Assinale a opção que apresenta a formulação de uma hipótese de pesquisa científica válida e testável para explicar o fenômeno.
Provas
As questões da prova de Língua Inglesa referem-se ao TEXTO a seguir:
Jadarite, described as ‘Earth's kryptonite twin,’ has potential to replace fossil fuels
A plain-white mineral found in western Serbia has a name straight out of the comics and a chemical profile that battery makers crave. Called jadarite, also known as sodium-lithium- boron silicate hydroxide, was first pulled from drill cores in 2004 and officially recognized as a new mineral two years later.
Geologists soon noticed that the formula on the sample label matched the faux “kryptonite” shown in a 2006 Superman film, minus the fluorine and the green glow. That pop-culture twist helped the discovery grab headlines, yet the real excitement lies in what the mineral could do for electric vehicles and renewable power storage.
Jadarite occurs as dull, chalky nodules tucked inside fine-grained shale in the Jadar Valley. The host rocks formed in an ancient lake basin rich in volcanic ash, allowing lithium and boron to build up in the pore waters until the mineral crystallized. Those conditions have been found only in Serbia so far, making the deposit both unique and strategically valuable.
Michael Page, a process chemist at Australia’s Nuclear Science and Technology Organisation (ANSTO), points out that the valley “is considered one of the largest lithium deposits in the world, making it a potential game-changer for the global green energy transition.” […]
Serbian communities are not unanimous in welcoming the mine. Environmental groups warn that alkali-rich tailings could leak into the Jadar River and harm local agriculture. Independent studies have found elevated boron and lithium downstream of exploratory boreholes, fueling weekly protests in Belgrade.
Supporters counter that rigorous water-management plans and sealed tailings cells can limit impacts, and that the economic gains, including thousands of skilled jobs, are hard to ignore. European automakers also see the project as a chance to shorten supply chains now dominated by South American brines and Chinese refiners.
Whether or not the Jadar project reaches full production, the mineral has already altered the critical-minerals map. Its existence proves that lithium can concentrate outside traditional pegmatites and brines, broadening the hunt to basins once dismissed as uneconomic clay.
Researchers are now experimenting with synthetic pathways, seeding gels of silica, borate, and lithium under lake-like conditions to see if jadarite can be grown on demand. Success could pave the way for engineered deposits that bypass mining altogether. For now, though, nature’s one known batch in western Serbia remains the focus of intense scientific, industrial, and public scrutiny.
Adapted from https://www.earth.com/news/jadarite-described-as-earthskryptonite-twin-has-potential-to-replace-fossil-fuels/
Based on the last paragraph, analyse the assertions below:
I. Scientific experimentation might do away with the need for mining.
II. Currently, interest in jadarite deposits seems to be waning.
III. It is highly unlikely that the deposits found in Serbia will reshape the future of energy.
Choose the correct answer.
Provas
As questões da prova de Língua Inglesa referem-se ao TEXTO a seguir:
Jadarite, described as ‘Earth's kryptonite twin,’ has potential to replace fossil fuels
A plain-white mineral found in western Serbia has a name straight out of the comics and a chemical profile that battery makers crave. Called jadarite, also known as sodium-lithium- boron silicate hydroxide, was first pulled from drill cores in 2004 and officially recognized as a new mineral two years later.
Geologists soon noticed that the formula on the sample label matched the faux “kryptonite” shown in a 2006 Superman film, minus the fluorine and the green glow. That pop-culture twist helped the discovery grab headlines, yet the real excitement lies in what the mineral could do for electric vehicles and renewable power storage.
Jadarite occurs as dull, chalky nodules tucked inside fine-grained shale in the Jadar Valley. The host rocks formed in an ancient lake basin rich in volcanic ash, allowing lithium and boron to build up in the pore waters until the mineral crystallized. Those conditions have been found only in Serbia so far, making the deposit both unique and strategically valuable.
Michael Page, a process chemist at Australia’s Nuclear Science and Technology Organisation (ANSTO), points out that the valley “is considered one of the largest lithium deposits in the world, making it a potential game-changer for the global green energy transition.” […]
Serbian communities are not unanimous in welcoming the mine. Environmental groups warn that alkali-rich tailings could leak into the Jadar River and harm local agriculture. Independent studies have found elevated boron and lithium downstream of exploratory boreholes, fueling weekly protests in Belgrade.
Supporters counter that rigorous water-management plans and sealed tailings cells can limit impacts, and that the economic gains, including thousands of skilled jobs, are hard to ignore. European automakers also see the project as a chance to shorten supply chains now dominated by South American brines and Chinese refiners.
Whether or not the Jadar project reaches full production, the mineral has already altered the critical-minerals map. Its existence proves that lithium can concentrate outside traditional pegmatites and brines, broadening the hunt to basins once dismissed as uneconomic clay.
Researchers are now experimenting with synthetic pathways, seeding gels of silica, borate, and lithium under lake-like conditions to see if jadarite can be grown on demand. Success could pave the way for engineered deposits that bypass mining altogether. For now, though, nature’s one known batch in western Serbia remains the focus of intense scientific, industrial, and public scrutiny.
Adapted from https://www.earth.com/news/jadarite-described-as-earthskryptonite-twin-has-potential-to-replace-fossil-fuels/
In the fourth paragraph, the process chemist’s opinion about the Jadar Valley is that it is
Provas
As questões da prova de Língua Inglesa referem-se ao TEXTO a seguir:
Jadarite, described as ‘Earth's kryptonite twin,’ has potential to replace fossil fuels
A plain-white mineral found in western Serbia has a name straight out of the comics and a chemical profile that battery makers crave. Called jadarite, also known as sodium-lithium- boron silicate hydroxide, was first pulled from drill cores in 2004 and officially recognized as a new mineral two years later.
Geologists soon noticed that the formula on the sample label matched the faux “kryptonite” shown in a 2006 Superman film, minus the fluorine and the green glow. That pop-culture twist helped the discovery grab headlines, yet the real excitement lies in what the mineral could do for electric vehicles and renewable power storage.
Jadarite occurs as dull, chalky nodules tucked inside fine-grained shale in the Jadar Valley. The host rocks formed in an ancient lake basin rich in volcanic ash, allowing lithium and boron to build up in the pore waters until the mineral crystallized. Those conditions have been found only in Serbia so far, making the deposit both unique and strategically valuable.
Michael Page, a process chemist at Australia’s Nuclear Science and Technology Organisation (ANSTO), points out that the valley “is considered one of the largest lithium deposits in the world, making it a potential game-changer for the global green energy transition.” […]
Serbian communities are not unanimous in welcoming the mine. Environmental groups warn that alkali-rich tailings could leak into the Jadar River and harm local agriculture. Independent studies have found elevated boron and lithium downstream of exploratory boreholes, fueling weekly protests in Belgrade.
Supporters counter that rigorous water-management plans and sealed tailings cells can limit impacts, and that the economic gains, including thousands of skilled jobs, are hard to ignore. European automakers also see the project as a chance to shorten supply chains now dominated by South American brines and Chinese refiners.
Whether or not the Jadar project reaches full production, the mineral has already altered the critical-minerals map. Its existence proves that lithium can concentrate outside traditional pegmatites and brines, broadening the hunt to basins once dismissed as uneconomic clay.
Researchers are now experimenting with synthetic pathways, seeding gels of silica, borate, and lithium under lake-like conditions to see if jadarite can be grown on demand. Success could pave the way for engineered deposits that bypass mining altogether. For now, though, nature’s one known batch in western Serbia remains the focus of intense scientific, industrial, and public scrutiny.
Adapted from https://www.earth.com/news/jadarite-described-as-earthskryptonite-twin-has-potential-to-replace-fossil-fuels/
In the fragment “a chemical profile that battery makers crave” (1st paragraph), the verb is close in meaning to
Provas
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