Govt. Exams
Entrance Exams
'Ephemeral' means temporary or short-lived, so 'permanent' is the opposite.
'Team' is singular (needs 'has'), and 'algorithms' is plural (needs 'ones'), so both A and C are errors.
'Consequently' shows the logical result of the increasing complexity, making the sentence coherent.
1) The blockchain technology emerged as a game-changer in 2008.
2) Today, it powers cryptocurrencies and decentralized applications.
3) Bitcoin was the first successful implementation of blockchain.
4) This innovation solved the double-spending problem in digital currencies.
Logical flow: introduction of blockchain (1) → solution to a problem (4) → first implementation (3) → current applications (2).
'Initiative' (singular) requires 'aims', and 'companies' (plural) requires 'manage'.
Logical progression: Introduction (1) → Problem identified (2) → Elaboration of problems (3) → Solution (4). This follows the problem-solution structure.
The passage's main theme is the relationship between climate change and food security, and the need for solutions through sustainable practices and cooperation.
The passage focuses on AI's transformative impact on healthcare through various applications. Option B best captures the main theme.
'Findings' (plural) takes 'contradict'. 'Are necessary' is grammatically correct parallel structure. The logic fits the sentence context.
'Committee' is collective noun needing 'has' not 'have'. 'They' (plural) needs 'were' not 'was'. Both are errors.