Unit 9 Undersea world
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unit 9
UNDERSEA WORLD
read the passage and answer the questions:
1. What percentage of the earth’s surface is
covered by seas and oceans?
2. How do scientists now overcome the
challenges of the depth?
3. What can we learn from the satellite photos?
4. How many major groups of marine animals and
plants?
5. What would happen if the sea biodiversity
were not maintained?
read the passage and answer the questions:
1. What percentage of the earth’s surface is covered by seas and
oceans?
75%
2. How do scientists now overcome the challenges of the depth?
By using modern devices.
3. What can we learn from the satellite photos?
We can know a wide range of information, including water
temperature, depth and the undersea population.
4. How many major groups of marine animals and plants?
There are three major groups
5. What would happen if the sea biodiversity were not
maintained?
Marine life would be at stake.
homework
• read the passage aloud and translate into
Vietnamese.
