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The hippopotamus is the third largest land animal, smaller only than the elephant and the rhinoceros. Its name comes from two Greek words which mean "river horse." The long name of this animal is often shortened to the easier to handle term "hippo."

The hippo has a natural affinity for the water. It does not float on top of the water; instead, it can easily walk along the bottom of a body of water. The hippo commonly remains underwater for three to five minutes and has been known to stay under for up to half an hour before coming up for air. In spite of its name, the hippo has relatively little in common with the horse and instead has a number of interesting similarities in common with the whale.

When a hippo comes up after a stay at the bottom of a lake or river, it releases air through a blowhole, just like a whale. In addition, the hippo resembles the whale in that they both have thick layers of blubber for protection and they are almost completely hairless.

[question text="The topic of this passage is " answers="the largest land animal#the derivations of animal names#*the characteristics of the hippo#the relation between the hippo and the whale "]

[question text="It can be inferred from the passage that the rhinoceros is " answers="smaller than the hippo#equal in size to the elephant#a hybrid of the hippo and the elephant#*one of the two largest types of land animals "]

[question text="The possessive "Its" in sentence 2 refers to " answers="*hippopotamus#elephant#rhinoceros#horse "]

[question text="It can be inferred from the passage that the hippopotamus is commonly called a hippo because the word "hippo" is " answers="*simpler to pronounce#scientifically more accurate#the original name#easier for the animal to recognize "]

[question text="The word "float" in paragraph two is closest in meaning to" answers="sink#*drift#eat#flap "]

[question text="According to the passage, what is the maximum time that hippos have been known to stay underwater? " answers="Three minutes#Five minutes#*Thirty minutes#Ninety minutes "]

[question text="The expression "has relatively little in common" in paragraph two could best be replaced by " answers="has few interactions#is not normally found#has minimal experience#*shares few similarities "]

[question text="The passage states that one way in which a hippo is similar to a whale is that " answers="they both live on the bottoms of rivers#*they both have blowholes#they are both named after horses#they both breathe underwater "]

[question text="The word "blubber" in paragraph three is closest in meaning to" answers="*fat#metal#water#skin "]

[question text="The passage states that the hippo does not" answers="like water#resemble the whale#have a protective coating#*have much hair "]

 

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