Exercise 15

Instructions to Solve
The assault on the purity of the environment is the price that we pay for many of the benefits of modern technology. For the advantage of automotive transportation we pay a price in smog-induced diseases; for the powerful effects of new insecticides, we pay a price in dwindling wildlife and disturbances in the relation of living things and their surroundings; for nuclear power, we risk the biological hazards of radiation. By increasing agricultural production with fertilizers, we worsen water population.

The highly developed nations of the world are not only the immediate beneficiaries of the good that technology can do, that are also the first victims of environmental diseases that technology breeds. In the past, the environmental effects which accompanied technological progress were restricted to a small ans relatively short time. the new hazards neither local nor brief. Modern air pollutions covers vast areas of continents: Radioactive fallout from the nuclear explosion is worldwide. Radioactive pollutants now on the earth surface will be found there for generations, and in case of Carbon-14, for thousands of years.

Question 1 :

The widespread use of insecticides has

A). reduced the number of wild animals
B). caused imbalance in the relationship between living beings and their environment
C). eliminated diseases by killing mosquitoes and flies
D). caused biological hazards
Answer : Option B

Question 2 :

The passage emphasis that modern technology

A). is an unmixed blessing
B). has caused serious hazards to life
C). has produced powerful chemicals
D). has benefited highly developed nations
Answer : Option B

Question 3 :

According to the passage the increasing use of fertilisers is responsible for

A). abundance of food
B). disturbance in the ecological system
C). water pollution
D). increase in diseases
Answer : Option C

Question 4 :

The harmful effects of modern technology are

A). widespread but short-lived
B). widespread and long-lasting
C). limited and long-lasting
D). severe but short-lived
Answer : Option B

Question 5 :

Radioactive pollutants

A). are limited in their effect
B). will infect the atmosphere for thousands of years
C). will be on the surface of earth for a very long time
D). will dissipate in short span of time
Answer : Option C