Why does the speaker mention a documentary made by Jacusteau?
What is the disconnect of the Arctic?
How many types of sound can be detected in the Arctic region?
What makes human beings poor at capturing sounds?
Why sounds are significant for Arctic animals?
Why does the sound environment under arctic ocean change?
Why does the noise level raise in the open arctic ocean? (2 points)
What are the consequences of the invasion of sub-arctic species? (2 points)
What damage can ship sound make to sea animals?
Why does the speaker mention the big city and rush hour?
What are the suggested solutions by the speaker? (3 points )
You should know the following words and phrases:
Anything but 一点也不
(You may contact：wechat: danielwutoefl to find answers.)