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people in britain often talk about climate and weather. they usually complain about their weather. however, there are parts of the world where extreme weather causes real dangers to the sandstorms, tornadoes and floods cause massive destruction. lots of people become to prevent this destruction, it’s important to forecast disasters in advance. japan is the world in using new technology for this purpose. the japanese have also worked out an system of informing people: phone companies automatically notify their customers about emergencies and disasters.these warnings are very efficient, and free of charge.
1. Changing
2. Population
3. Regularly
4. Homeless
5. Leader
6. Effective
1)changeable
2)population
3)regularly
4)homeless
5)leader
6)effective