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AN INNOVATION AT THE LONDON MARATHON

The London Marathon has been held every year since 1981. Last year's Marathon, however, was different 8.1. _____ the previous ones. For the first time ever, the runners were not given plastic bottles of water. Instead, they were offered biodegradable capsules, filled 8.2. _____ water and made of seaweed, a marine plant which grows in the ocean. Runners were told that they 8.3. _____ bite a small hole in the capsule to drink the water. The capsule itself could be eaten, too.

The capsules were introduced because runners usually throw their empty bottles onto the ground 8.4. _____ they finish drinking. That's allowed during the marathon but, as a result, the route is completely covered with plastic waste at the end of the event. For a long time, organisers have tried to 8.5. _____ with different options for reducing the amount of plastic thrown away during the marathon. They now hope that in the future, plastic bottles will be replaced by the capsules at all running events.