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29. Correct the following statements.

Begin with:

  • I am afraid that’s wrong;

  • you are not quite right;

  • that’s not quite so;

  • I think you are mistaken;

  • as for as I know;

  • on the contrary;

  • I don’t think so;

  • according to the text.

1. Radioisotopes can’t be formed nohen radiation that result from the explosion influenced atoms nearly.

2. Underground testing can’t climinate fallout.

3. Not all nuclear explosions produce a giant fireball of intensely hot gases.

4. Fallout particles range in size from line imbisible clust to ask of snowflake size.

5. In general, the intensity of radiation in an area decreases as the distance from the blast site decreases too.

6. Local fallout may settle over a smoothly shaped are, depending upon the winds that carry it.

7. In the most powerful nuclear exposions, much of the fallout may rise to the troposphere.

8. The radioisotopes in fallout give off radioation for definite periods of time.

9. Most of the fallout alements continue to give off radion over a long period.

10. The possibility of nuclear roar has caused people to think about the danger of distant fallout.

11. There is no danger that certain fallot elements may enter the human body through breathing and eating.

12. Subway- train tunnels or other underground areas aren’t designated as public fallout shelters.

30. Match the words in the left column with their explanation in the right column:

Explosion

Is a ball of fire, e.g. one at the centre of a nuclear explosion?

Eliminate

An intensely burning fire or an active burning

Fission

A violent expansion, usually accompanied by noise, caused by a sudden release of energy from a very rapid chemical or nuclear reaction.

Fallout

The remnants of something broken to pieces

Precipitation

Means to remove something completely, especially when it something that you do not want or need.

Decay

Is the splitting of the nucleus of an atom to produce a large amount of energy or cause a large explosion?

Blaze

The often radioactive particles stirred up by or resulting from a nuclear explosion and descending through the atmosphere

Defies

Is a process in a chemical reaction which causes solid particles to become separation from a liquid?

Fireball

To decrease gradually in quantity, activity, or force.

31. Match the words in the left column with their explanations in theright column

hearing

Is a state of physical, mental, and social well-being.

respiration

Surroundings, specially the material and spiritual influences which affect the growth, development and existence of a living being.

noise pollution

The act of apprehending or the ability to apprehend sounds aurally.

contaminate

To make unhealthy impure.

pollute

Any of various processes by which an organism takes in air or dissolved gases, uses one or more of them in energy-producing chemical changes, and expels both the gaseous by-products of the changes and the unused part of the air or gas.

health

Expenditure of goods, materials etc. without proportionate result; deterioration or decay by use, misure or lack of use; useless or damaged material produced during or left over from a manufacturing process;

waste

To infect with contagious disease; to pollute.

Excessive noise in the environment, typically from planes, autos, industry.

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