Whatever may be its wider implications, the explosion of hydrogen bomb is, for the meteorologist, simply another atmospheric disturbance. It should therefore be classed with certain rare natural.....such as volcanic ....12... But there are certain features of a man-made disturbance that requires special examination. As with all events on this ....13...It is impossible to describe what happens in details. However we can be reasonably sure of the main effects, and most impressive of these arises from ....14...The immediate result of the ....15....is that the air surrounding the bomb is raised very rapidly to an enormously high.....16....The hot gases expand violently as great........17.....compressing the air around them into what is called .....18......or blast wave that is responsible for much of terrible destructive power of the weapon.
Another kind of wave arises because of the weight of the air. The force of the explosion lifts the ....19...waves. Waves of this type are normally felt by human beings and they have their effect on the weather.
Adapted from Ayoola K.(2007) University for All Students, Lagos, Nigeria: Olive Free Venture
Choose the most appropriate answer in the numbered 18
A.
shocktherapy
B.
shockwaves
C.
shocktroops
D.
shockjocks
Correct Answer: Option B
Explanation
shockwaves; a sharp change of pressure in a narrow region travelling through a medium, especially air, caused by explosion or by a body moving faster than sound.
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