▶ Your Answer :
The reading passage contends that there are a few reasonable reasons why whales lying helplessly on the ocean. On the other hand, the lecturer brings several points that contradict the reading passage's claim which is all wrong.
To begin with, the lecturer argues that there are tremendous wind patterns. Therefore, the whales can be affected variety of wind patterns. However, this refutes the reading passage's claim that the wind blows from Antarctica toward Australia. Therefore, the whales swim to shallow shore near Australia and they are stranded.
Second, the lecturer asserts that health whales are also stranded. when health whales are saved, they swim to return and have own power to back into the ocean. In contrast, this rebuts the reading passage's claim that when the whale becomes weak and unable to swim because of the illness, they gradually come to the shore by waves.
Finally, the lecturer maintains that all whales can navigate by using sonar beams. However, only some whales are stranded, others are not stranded. Moreover, if there is a geological feature on the shore, most of the whales have to be stranded, but they are not. This casts doubt on the reading passage's claim that some shores have a very gentle slope and the whale can be lost because the whales navigate the ocean by emitting some noises and listen for echoes.
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