Question

The Greatest Place to Be a Martian: Australia?
May 31, 2013.
Would Martians feel at home in Australia? Recent
research has proven that if Martians took a holiday to Australia
they might feel more at home than you’d think. Associate
Professor Patrice F. Rey (University of Sydney) has recently
exposed a unique set of attributes suggesting that the Australian
red centre could be a close analogue for the surface of the red
planet – and how this unusual weathering has led to the
formation of Australia’s opals. Precious opal, Australia’s national
gemstone, has been mined from the red dirt of central Australia
for over a century. Its formation at shallow depths, and why it
can be found in central Australia – yet hardly anywhere else on
Earth – has remained a mystery. In this recent paper published in
the Australian Journal of Earth Sciences, Associate Professor
Patrice Rey, from the University’s School of Geosciences, explains
that the formation of Australian opal was due to an extraordinary
episode of acidic weathering during the drying out of the central
Australian landscape that followed the regression of the
Eromanga Sea 100 million years ago. On Earth, regional acidic
weathering is rare. Interestingly, acidic oxidative weathering has
been documented at the surface of Mars, which shares an
intriguing set of attributes with the Great Artesian Basin. These
attributes include similar sandstones, a long episode of drying
out leading to the formation of clay and opaline silica, and last
but not least the same surface colour. This latest research suggests
that the Australian red centre could well be the best regional
terrestrial analogue for the surface of the red planet. Could it be
that Australia may be home to Martians in the not too distant
future?



04. Sintetize a ideia central do texto em CINCO LINHAS e
apresente os pontos mais importantes de sua discussão:


05. No trecho “These attributes include similar sandstones,
a long episode of drying out leading to the formation of clay and
opaline silica, and last but not least the same surface colour...” os
termos destacados podem ser tratados como verbo como intenção
de tempo? Justifique sua resposta em 3 LINHAS:

Answer 1

Res5- sim pois ambos os verbos terminam ING que normalmente pode ser usado de várias formas, uma delas é para descrever uma ação que está acontecendo agora, neste exato momento ou que ainda não teve fim

Explicação: