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4. Two DTMs produced from the same data will contain the same
information even if their resolution and sampling strategies are different.

II. LEXICAL EXERCISES

Task 1. Complete the sentences according to the text.
1. The crust is broken into many large plates (tectonic plates)

that ________.
2. The data files contain the spatial elevation data of the
terrain in a digital format which is usually presented as _______.

3. Digital Surface Model (DSM) is usually the main product
_______.
4. In order to identify the exact location of places on the Earth

we can use series of imaginary vertical and horizontal lines –
_______.
5. ________ measures location from only two values, which are
both measured relative to the polar axis of the Earth.

6. DTMs are widely used especially in civil engineering
_______.
7. The accuracy of a DTM depends on the accuracy of its

source data and on ________.
8. Any line of longitude (a meridian) can serve as _______.
9. _______ based on existing DTMs may also introduce error

and uncertainty through errors in interpolating points or fitting
surfaces.
10. For precision purposes, degrees of longitude and latitude
have been divided into __________.

Task 2. Match the words in A with the words in B to form

word-combinations and translate them into Ukrainian.

№ A B
1. to be made of tectonic plates
2. extraction of to find

3. to depend on the exact location
4. to form by computer programs

5. to be broken into of gravity measurements
6. to be manipulated rock
7. to identify the accuracy of the source data

8. to be able the system of geographical coordinates

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