[Sentence Correction]

Fossils of the arm of a _{sloth found in Puerto Rico in 1991, and dated at 34 million years old, made it the earliest known mammal of} the Greater Antilles islands.

[Critical Reasoning]

Which of the following, if it were discovered, would be pertinent evidence against the speculation above?

[Reading Comprehension]

In the context of the passage, the phrase 'fossils of a predicted kind' (in the highlighted text) most likely refers to which of the following?

[Sentence Correction]

According to scientists at the University of Alaska, while the surface temperature of the globe has risen over the last century by about one degree Fahrenheit, the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees.

[Sentence Correction]

According to scientists at the University of Alaska, while the surface temperature of the globe has risen over the last century by about one degree Fahrenheit, the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees.

[Sentence Correction]

According to scientists at the University of Alaska, while the surface temperature of the globe has risen over the last century by about one degree Fahrenheit, _{the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees}

[Sentence Correction]

Rock samples taken from the remains of an asteroid about twice

the size of the 6-nuke-wide asteroid that eradicated the dinosaurs

has been dated to be 3.47 billion years old and thus is evidence

of the earliest known asteroid impact on Earth.

[Sentence Correction]

Rock samples taken from the remains of an asteroid about twice

the size of the 6-mile –wide asteroid eradicated the dinosaurs

has been dated to be 3.47 billion years old and thus is evidence

of the earliest known asteroid impact on earth

[Sentence Correction]

Rock samples taken from the remains of an asteroid about twice the size of the 6-mile-wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth.

[Sentence Correction]

Rock samples taken from the remains of an asteroid about twice the size of the 6-mile-wide asteroid that eradicated the dinosaurs has been dated to be 3.47 billion years old and thus is evidence of the earliest known asteroid impact on Earth.