Read the passage carefully and choose the best answer to each question out of the four alternatives.
The problem of water pollution by pesticides can be understood only in context, as part of the world to which it belongs- the pollution of the total environment of making. The pollution entering our waterways comes from many sources, radioactive wastes from reactors, laboratories, and hospitals; fallout from nuclear explosions; domestic wastes from cities and towns; chemical wastes from factories. To these is added a new kind of fallout the chemical sprays applied to crop lands and gardens, forests and fields. Many of the chemical agents in this alarming melange initiate and augment the harmful effects of radiation, and within the group of chemicals themselves there are sinister and little- understood interactions, transformations, and summations of effect.
Even since the chemists began to manufacture substances that nature never invented, the problems of water purification have become complex and the danger to user of water has increased. As we have seen, the production of these synthetic chemicals in large volume begin in the 1940’s. It has now reached such proportion that an appalling deluge of chemical pollution is daily poured into the nation’s waterways. When inextricably mixed with domestic and other wastes discharged into the same water, these chemicals sometimes defy detection by the methods in ordinary use by purification plants. Most of them are so complex that they cannot be identified. In rivers, a really incredible variety of pollutants combine to produce deposits that sanitary engineers can only despairingly refer to as “gunk”.

All the following words mean ‘chemical’ except

Direction:  In the following passage, there are blanks each of which has been numbered. Five words/ phrases have been suggested, one of which fills the blanks appropriately.

Jerimoth Hill (812 ft, 247 m) is the highest point in the U.S. state of Rhode Island. (1) town of Foster near Providence, the site is used as an observatory. It is also a (2) highpointers, and prior to 2005 was known for being difficult to access due to a local landowner who prohibited entry. The hill is located on Route 101 in Foster, a half mile from the Connecticut line. To (3), for which there is a sign, there is a .3-mile (480 m) long trail that has a mere 10-foot (3.0 m) elevation gain. The mountain is 812 feet (247 m) high and is located 15 miles (24 km) west of Providence, Rhode Island, and 35 miles (56 km) east of Willimantic, Connecticut. The high point was donated to Brown University by Walter Raymond Turner, a Brown alumnus of the class of 1911. In 1938 (4) saltbox house to the west and the surrounding 360 acres (150 ha). Turner provided a right of way, straight north from the high point to Route 101, though eventually (5).      

Find out the appropriate word for blank 3.

Direction: In the following questions, out of the four alternatives, choose the one which best expresses the meaning of the given word as your answer.

Ecstasy

Direction: In the following questions, out of the four alternatives, choose the word opposite in meaning of the given word as your answer.

Outrageous

Direction: - In the question read each sentence to find out whether there is any error in it. the error, if any will be in one part of the sentence. The number of that part is the answer. If there is no error, the answer is (D). (Ignore errors of punctuation, if any.)

Being (A)/ a rainy day (B)/ I could not go out. (C). / No error (D). 

Select the most appropriate word to fill in the blank.
______ the train was late by six hours, it made up three hours before reaching its destination.

Choose the word which is most nearly the same in meaning as the word given in capital letters:

OSTENSIBLY

Fill in the blanks in the passage below with the appropriate word from the options.
The happiest person is the one who enjoys what life offers. ...(1)... age has its pleasures and its pains. Old age has always been thought of as the ... (2)... age to be. But it is not ... (3)... for the old to be unhappy. With old age should come... (4)... and the ability to guide others with ... (5)... wisely given. The old can have the joy of seeing their... (6).. making progress in life. They can watch their grandchildren .(7)... up around them. If... (8). .. life has been a useful one, they can feel the happiness of having come through the ...(9)... of life …. (10).

mark the answer (8).