Выберите эквивалент подчеркнутому слову

1. The lithosphere makes up about 29% of the earth’s surface.

a. deposits

b. penetrates

c. effects

d. builds

2. The hydrosphere is composed of salt water, fresh water, ice and snow.

a. consists of

b. deals with

c. results in

d. is concerned with

3. Ocean waters contain many minerals.

a. envelop

b. influence

c. include

d. complete

4. The earth consists of three quite different parts: the atmosphere, the hydrosphere and the lithosphere.

a. is included

b. is formed

c. constitutes

d. builds up

5. Almost all rocks include two or more minerals.

a. change

b. constitute

c. increase

d. comprise

6. Ocean waters contain many elements.

a. consist

b. constitute

c. form

d. include

7. Magma comprises large quantities of both oxygen and hydrogen.

a. forms

b. constitutes

c. contains

d. occurs

8. The waters of the Earth include the waters of oceans, lakes and streams.

a. occur

b. comprise

c. divide

d. modify

Ex.7.

Заполните пропуски, выбрав правильный вариант из предложенных:

A:

a) stratum

b) strata

c) stratification

d) stratified

e) stratigraphy

1. One of the most distinctive features in sedimentary rocks is that they are ______.

2. The thinnest layer of a ______ rock form lamina.

3. A number of lamina may be united in a ______ or bed, which may vary in thickness.

4. The study of the relation of layers to each other is called ______.

5. The deposits made directly by the ice are characterized by an absence of ______.

6. Stratigraphy studies the relation of ______ to each other.

1–	3–	5–
2–	4–	6–

B:

a) origin

b) original

c) originally

d) originate

1. As a result of changes of level sedimentary rocks which were ______ deposited in the ocean now form parts of the continents.

2. In some places the soil is mainly of organic ______.

3. Most earthquakes ______ beneath the sea.

4. Some rocks change their ______ qualities under high tº and pressure.

5. There are many minerals which ______ deep in the earth and are unstable under surface conditions.

1–	3–	5–
2–	4–	6–

Ex.8.