There is much more water than land (1) the surface of the earth. The seas and oceans (2) nearly

Câu hỏi :

There is much more water than land (1) the surface of the earth. The seas and oceans (2) nearly four-fifths of the whole world, and only one-fifth of (3) land. If you travelled over the earth (4) different directions, you would have to spend much more of your time (5) on water than on roads or railways. We sometimes forget that (6) every mile of land there is four miles of water. There is much water on the surface of our earth that we (7) to use two words to describe. We use the word seas those parts of water surface which (8) only a few hundreds of miles wide, the word oceans to describe the huge areas of water which are thousands of miles wide and very deep.