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2. It (the Earth) is 7,920 miles (12,750 kilometers)
around_______.
3. Due to irregularities or mass anomalies in mass distribution
inside the Earth the “global ocean” results in______.

4. Scientists learned that the oldest known rocks were formed
about ________.
5. If we ignore tidal and current effects on this “global ocean”,

the resultant water surface is affected only by_____.
6. The _______ is the most graphical representation of the Earth
gravity field.
7. The maximum geoid height is about _______.

8. Many years ago cold dust particles were attracted to each
other and came together_______.
9. Dense material sank to the center, while the lighter pieces

created ______.
10. The oblate ellipsoid provides a relatively simple figure which
fits the Geoid to a first order approximation, though for small scale

mapping purposes _______.
11. The Earth`s rotation around the Sun takes 365 days, 6 hours, 9
minutes, 10 seconds and is called a ________.

Task 2. Match the words in A with the words in B to form
word-combinations and translate them into Ukrainian:

№ A B

1. the centre Universe
2. attracted to by gravity

3. entire an undulated surface
4. to take on around the Sun
5. dependent on a mathematical definition and description.

6. to revolve each other
7. affected solid form

8. results in the mass distribution
9. to depend on of interest
10. requires geologic history

Task 3. Match each with the following terms with the correct
definition.

а) Equator; b) Fossil; c) Geoid; d) Ellipse;
e) Gravity; f) the Earth; g) Ellipsoid.
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