plz answer the circled parts

2.(b) It is in fact the longest constitution in the world.

1.(a) Researchers have identified a new way to destroy authrax (I think it should be anthrax..).

1.(c) The technique known as bacterio phages is based on naturally occurring bacteria killers.

1.(b) Officials allow the method to detect bacteria with a hand-held device.

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I am able to solve only these..
Hope this helped u..