Entrance Exams
Govt. Exams
'Each' is singular and requires 'is' instead of 'are'. The sentence should read 'Each of the students is required...'
Ameliorate means to make something better or improve it. It's the opposite of worsen.
Past tense should be consistent throughout. 'walked' and 'bought' both maintain past tense consistency.
Ephemeral means lasting for a very short time. Transient carries the same meaning of being temporary or short-lived.
After the verb 'performing', an adverb is needed, not an adjective. 'Well' (adverb) is correct, not 'good' (adjective).
'Ubiquitous' means present everywhere at the same time. 'Omnipresent' has the same meaning, relating to being everywhere.
Both instances need the definite article 'the': 'The elephant' (specific animal) and 'the largest' (superlative requires 'the').
While 'sanguine' originally relates to blood, in modern usage it means optimistic or hopeful about the future. This is the most commonly tested meaning in SSC exams.
Parallel structure requires all items in a list to have the same grammatical form. Option B uses infinitives consistently: 'to read, to write, to paint'.
This is irony—saying the explanation is clear when it's actually the opposite (mud is unclear). It's also a simile, but the primary device is irony.