English, asked by RM123493, 2 months ago

Answer this question in image.


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Correct answer=2 thanks and 1 brainlinst answer​

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Answered by nihaalarfin1
1

Explanation:

protocol = sets of rules, that's why its collective noun.

rail line and railway stations can be seen by our eyes, that's why they are concrete noun.

help and development, can be verb. but in the paragraph they are being used as (abstract) noun.

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