Correct Answer: (b) Adverb
Solution:The word 'Consequently' is an adverb because it modifies the entire sentence by showing the result or consequence of a previous action or statement. Adverbs often answer questions like 'how,' 'when,' 'where,' 'why,' or 'to what extent.' In this case, 'Consequently' explains why the situation poses a threat to agriculture and human health.