sat suite question viewer
With their distinctive cone shapes and steeply sloping sides, the volcanoes Hverfjall (Iceland) and Toliman (Guatemala) may look similar from afar. Tehnuka Ilanko and other volcanologists, blank can tell by how each was formed that Hverfjall is a cinder cone volcano, while Toliman is a composite volcano.
Which choice completes the text with the most logical transition?
Explanation
Choice D is the best answer. "Though" logically signals that the information in this sentence—that volcanologists can distinguish the two volcanoes by how they were formed—presents a qualification or exception to the previous statement that the volcanoes look similar. The volcanoes are actually of two different types.
Choice A is incorrect because "for example" illogically signals that the information in this sentence exemplifies the previous information about the volcanoes looking similar. Instead, the sentence presents a qualification to that apparent similarity—the volcanoes are actually of two different types. Choice B is incorrect because "in addition" illogically signals that the information in this sentence merely adds to the previous information about the volcanoes looking similar. Instead, the sentence presents a qualification to that apparent similarity—the volcanoes are actually of two different types. Choice C is incorrect because "therefore" illogically signals that the information in this sentence is a result of the previous information about the volcanoes looking similar. Instead, the sentence presents a qualification to that apparent similarity—the volcanoes are actually of two different types.