In 1863, in an effort to reduce street traffic, London opened the world’s first underground line, the Metropolitan Railway. Its birth can be traced back two decades before to the building of the world’s first under-river tunnel below the Thames, which swiftly became both popular with pedestrians and a huge tourist attraction.
      Initially, what would become the London Underground consisted of tracks dug slightly below the surface and then covered over, but as the technology improved, and trains switched from steam-powered to electric, the lines went deeper. Now the ground beneath Londoners’ feet hums with an extensive network of Tube lines ferrying people about the city speedily, efficiently — and out of sight. 
      Along with trains, powerlines, pipes, and cables, there’... Ver mais

Based on the previous text, judge the following item. 

The last period of the second-to-last paragraph suggests that ecosystems are decreasing.

     In 1863, in an effort to reduce street traffic, London opened the world’s first underground line, the Metropolitan Railway. Its birth can be traced back two decades before to the building of the world’s first under-river tunnel below the Thames, which swiftly became both popular with pedestrians and a huge tourist attraction.
      Initially, what would become the London Underground consisted of tracks dug slightly below the surface and then covered over, but as the technology improved, and trains switched from steam-powered to electric, the lines went deeper. Now the ground beneath Londoners’ feet hums with an extensive network of Tube lines ferrying people about the city speedily, efficiently — and out of sight. 
      Along with trains, powerlines, pipes, and cables, there’... Ver mais

Based on the previous text, judge the following item.

In “To some, these thick asphalt ribbons crisscrossing countries and cleaving apart communities and ecosystems no longer seem fit for purpose”, the excerpt “no longer seem fit for purpose” could be correctly replaced by don’t seem fit for purpose anymore, without change in its meaning. 

Text for the item from.



Paridhi Agrawal & Pradnya Nikhade. Artificial Intelligence in Dentistry: Past, Present, and Future. Cureus, v. 14, n.º 7, 2022 (adapted).


According to the text, judge the item.

Artificial Intelligence is very effective in detecting diseases in endodontics. 

According to the text, judge the item.

According to the text, Artificial Intelligence is able to imitate the intelligence of humans. It has increased in the dentistry sector and has a variety of applications in endodontics.

Text for the item from.



Paridhi Agrawal & Pradnya Nikhade. Artificial Intelligence in Dentistry: Past, Present, and Future. Cureus, v. 14, n.º 7, 2022 (adapted).


According to the text, judge the item.

It is necessary to have human intelligence to make decisions in the healthcare sector; for that reason, AI should not be used to take complex predictions in endodontics.  

Text for the item from.



Paridhi Agrawal & Pradnya Nikhade. Artificial Intelligence in Dentistry: Past, Present, and Future. Cureus, v. 14, n.º 7, 2022 (adapted).


According to the text, judge the item.

Despite being very useful to the sector, AI models has low applicability in real life situations.  

Text for the item from.



Paridhi Agrawal & Pradnya Nikhade. Artificial Intelligence in Dentistry: Past, Present, and Future. Cureus, v. 14, n.º 7, 2022 (adapted).


According to the text, judge the item.

The term “its” (line 1) is a possessive adjective and refers to Artificial Intelligence (line 1). 

Text for the item from.



Paridhi Agrawal & Pradnya Nikhade. Artificial Intelligence in Dentistry: Past, Present, and Future. Cureus, v. 14, n.º 7, 2022 (adapted).


According to the text, judge the item.

The expression “have shown” (line 4) agrees with the subject “models” (line 3).