Q21 PARAJUMBLES

Commercially reared chicken can be unusually aggressive, and are often kept in darkened sheds to prevent them pecking at each other.

Bales could diminish aggressiveness and reduce injuries; they might even improve productivity, since a happy chicken is a productive chicken.

 Only B should follow (1)- darkened sheds, low light conditions.

The first sentence talks about how commercially reared chicken are usually aggressive and hence are kept in darkened sheds to prevent them from pecking at each other. This is because, in low-light conditions, they behave less aggressively – this idea is mentioned in sentence B. However, altering the environment in which the birds live, like adding bales of wood-shavings can work wonders and prevent the birds from pecking each other. This is proved with the help of an experiment in which birds in the enriched environment spent far less time pecking each other, instead preferring to peck inanimate objects in their pens. So, the correct order of sentences is 1-B-D-C-A-2.

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