The correct word is filled in the above given sentence :-
Concerned - switch

Correct Option: D

As we can say that ,
The correct word is filled in the above given sentence :-
Concerned about prolonged power cuts in urban areas, the authorities have decided to switch over to more reliable and eco-friendly systems to run its pumps.

The given statement is probably mentioning a 50-year old movie that was very moving, and the speaker is saying that (s) he hasn’t forgotten those horrifying images yet. Option (b) is correct, because ‘its’ makes the sentence more clear, as the pronoun ‘its’ refers to the movie and those images are described as ‘haunting’ which means that the images in the movie were disturbing and disquieting. Option (a) is wrong, because ‘the’ instead of ‘its’ makes the sentence ambiguous by not relating to the preceding clause. Option (c) is wrong, because the images were not ‘haunted’. ‘Haunted’ is used to describe something that is troubled, not what is troubling. Option (d) is wrong, because ‘haunt’ as a noun only means a frequently visited place.
The correct word is given as :-
its haunting images

Correct Option: B

The given statement is probably mentioning a 50-year old movie that was very moving, and the speaker is saying that (s) he hasn’t forgotten those horrifying images yet. Option (b) is correct, because ‘its’ makes the sentence more clear, as the pronoun ‘its’ refers to the movie and those images are described as ‘haunting’ which means that the images in the movie were disturbing and disquieting. Option (a) is wrong, because ‘the’ instead of ‘its’ makes the sentence ambiguous by not relating to the preceding clause. Option (c) is wrong, because the images were not ‘haunted’. ‘Haunted’ is used to describe something that is troubled, not what is troubling. Option (d) is wrong, because ‘haunt’ as a noun only means a frequently visited place.
The correct word is filled in the above given sentence :-
Although it has been more than 50 years since Satyajit Ray made Pather Panchali, its haunting images refuse to go away from the mind.

(a) Acknowledged (accepted), banishing (removing): appropriate. (b) infuriating (angering): inappropriate. (c) exacerbating (making worse): inappropriate. (d) decimated (annihilated): inappropriate.

Correct Option: A

(a) Acknowledged (accepted), banishing (removing): appropriate. (b) infuriating (angering): inappropriate. (c) exacerbating (making worse): inappropriate. (d) decimated (annihilated): inappropriate.
The correct word is filled in the above given sentence :-
My inward petition was instantly acknowledged. First, a delightful cold wave descended over my back and under my feet, banishing all discomfort.

‘One eye is kept’ means that some (not full) attention or concern is shown. So, logically, option (b) is correct, because the company has kept an eye on the future. Though they are concerned about the future, yet the company does promote what is popular and liked at the present time. We can easily make out why the other options are wrong.
The correct word is given as :-
future, popular

Correct Option: B

‘One eye is kept’ means that some (not full) attention or concern is shown. So, logically, option (b) is correct, because the company has kept an eye on the future. Though they are concerned about the future, yet the company does promote what is popular and liked at the present time. We can easily make out why the other options are wrong.
The correct word is filled in the above given sentence :-
Though one eye is kept firmly on the future, the company now also promotes popular contemporary art.

As we can say that ,
The correct word is filled in the above given sentence :-
known, of

Correct Option: B

As we can say that ,
The correct word is filled in the above given sentence :-
More is known of conditions of the tribals in Maharashtra than of conditions of those in the other parts of the country.