ictive to the young (ARCHITEC led to an acute shortage of housing. (POPULATE) teams when the bins are full (COLLECT) 16. Computer-controlled transport systems like electric buses and trains wil produce less greenhouse gas rowth of 15. Sensors can inform waste (EMIT) 17. In the future, cities will only usé sources of energy such as wind and solar power (RENEW) 18. Cameras and sensors are used to improve city dwellers' safety and (SECURE) 19. There seems to be a lack of 20. These children may need careful, for early signs of cancer. (MEDICINE) 21. Patients can receive 22. The app can give city dwellers route streets (RECOMMEND) over what we should do. (CERTAIN) check-ups that include special tests to look and other documents online (PRESCRIBE) when they cycle through the cit