In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.

Everything (1) _________ us makes our environment. Living and non-living things form the (2) _________ of our surroundings. Plants, animals and microbes are parts of our environment. Humans have affected the environment in multiple (3) ______ like clearing of forests, building houses and farms, making roads, etc. This is the root (4) _______ of air, water and land pollution on the planet. Ecologists across the globe are making efforts to educate mankind about the (5) _________ of nature, the crisis we face and the methods of managing these crises.

Select the most appropriate option to fill in blank number 5.

Select the most appropriate option to fill in the blank.

Any resemblance of a character in this book to a living person is ______ incidental.

Given below are six sentences 4 of which are jumbled. The first and the last sentence are given. Pick the option that gives the logically correct order of the four sentences.

S-1 Rahul was alone at home.

A: He hesitated for a moment but then picked up the receiver.

B: Suddenly the phone rang.

C: He repeated ‘Hello’ but still no one replied from the other end.

D: Though he said ‘Hello’, there was no response from the other side.

S-6 The phone rang again but this time somebody asked if his father was at home.

Select the option that can be used as a one-word substitute for the given group of words.

Fall back or sink again (into a worse state after an improvement) 

Select the most appropriate homonym to fill in the blank.

The farmers grow ________ in their fields.

Given below are four jumbled sentences. Pick the option that gives their correct order.

A: As I rushed to open my door, bright lights from outside dazzled my eyes.

B: Suddenly I heard people shouting outside.

C: Last Sunday, I was watching TV.

D: It was about 10:30 p.m.

What is the synonym of the word 'vigilant'?

Select the most appropriate meaning of the given idiom.
 A fly on the wall