The following sentences form a paragraph. The sentences are numbered as P, Q, R, S and T. These five parts are not given in proper order. Read the sentences and choose the alternative that arranges them in the correct order.

P. The krill which feed on algae from sea ice – may be more exposed to plastic.

Q. Microplastics have previously been discovered in Antarctica’s surface waters, sediments and in snow.

R. The studies found 14 different kinds of plastic, and on average, about 12 pieces of plastics were found per litre of water

S. Small pieces of plastic have been detected in sea ice in Antarctica for what scientists believe is the first time

T. The new discovery could mean the region’s krill is vulnerable.