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Figure 2.2. Structure of the Earth




                        Task 3. Answer the questions, using the active vocabulary.
                        1. Is the Earth in a perfect circular shape?

                        2. What convinced scientists that the Earth was very old?
                        3. What happened with particles swirling through empty space of

                  the Solar System?
                        4. How was the Earth’s crust formed?
                        5. What was the Earth like for ancient people?


                        Task 4. Define whether the following statements are true or
                        false. Correct the false ones according to the text.

                        1. The Earth is very large and diverse planet.

                        2. The Earth is flattened at the poles.
                        3. Plants and animals convinced scientists that the Earth was very
                  old.
                        4. Most of people believed that about one hundred billion years

                  ago the Earth, the Sun, and all the planets of the Solar System were
                  nothing  but  a  cloud  of  cold  dust  particles  swirling  through  empty
                  space.

                        5. Four or five billion years ago, such planets as the Earth, Mars,
                  Venus, and other were formed.
                        6. The Earth's magnetic field formed first.
                        7. People in ancient times also believed that the Earth was round

                  and stood still.

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