Test Yourself. Иванова Ю.В - 40 стр.

UptoLike

ВУЗ: 

ТТИ ЮФУ | Таганрог

Составители: 

Рубрика: 

3. It is a well known physical property of water that it a) boils b)
evaporates c) freezes at 0
0
C.
3.
4. The silt which is picked up by a river is a) moulded b) deposited
c) shaped near its mouth.
4.
5. Atmospheric a) change b) temperature c) pressure is measured
with a barometer.
5.
6. Lightning is a sudden a) charge b) discharge c) pressure of
electricity from cloud to cloud or from cloud to earth.
6.
7. Air a) increases b) decreases c) condenses in volume as the
temperature rises.
7.
8. The a) spark b) moisture c) climate in the atmosphere is
produced by the breathing of living things.
8.
9. Nowadays we know when to expect a) radiation b) eclipses c)
explosion of the moon and sun.
9.
10. Before the days of artificial a) satellites b) instruments c) radio,
scientists used telescopes to obtain information about the planets
and stars.
10.
11. Compressed a) water b) heat c) steam is a valuable source of
energy.
11.
12. Oxygen is needed by the body a) elements b) cells c)
compounds of all animals.
12.
13. Mercury is used as a a) detergent b) catalyst c) waste in the
production of plastics.
13.
14. Oil floats on water and does not a) evaporate b) dissolve c)
concentrate in it.
14.
15. The electro-magnets generate a) current b) water c) voltage in
coils of wire.
15.
16. Carbon a) acid b) chloride c) dioxide is needed by plants to
make sugars.
16.
17. Backward a) reaction b) thrust c) propulsion produces forward
motion.
17.
40

Страницы