Geography. Козлова Е.П. - 39 стр.

4. Некоторые вулканы очень высокие. Они выступают над поверхностью моря.


5. Большинство элементов химического состава морской воды поступает из
   атмосферы, а некоторые вырабатываются живыми морскими организмами.
6. Важным источником йода являются водоросли.

8.9 Read and translate the dialogue. Reproduce it

A: I’ve read a very interesting book about the oceans and the ocean floor.
B: What facts were the most interesting?
A: The greatest geographical discovery made in modern times was that of the mid-
oceanic ridge, a great mountain range, some 40,000 miles long, winding its way
through every ocean of the world.
B: Why is this discovery considered to be of great importance?
A: We now know that it has a number of branches and that a fracture zone is to be
found at the centre of the entire ridge. Most of the earthquakes that take place under
the sea are centred along this zone.

8.10 Answer the following questions

Why is the earth unusual among the other planets?
Give all the data relating to the world ocean.
Why is the ocean of peculiar importance to life?
Where is the deepest part of the ocean situated?
What is the chemical composition of sea water?
Why is the world ocean called “a giant depository for elements”?

8.11 Write down a summarizing sentence for each paragraph of the text “The
Ocean”. On the basis of the above task prepare an oral summary of the text




40