Fill in the blanks:
1. ……… migration may be from a few days to few months.
2. ……… migrants stay outside at least for a few years.
3. ……… period primitive man started domestication of plants and animals.
4. The excess production of food grains was the major reason for ………
5. During the beginning of the ……… century itself many cities were found near the Aegean Sea.
6. …………… period starts from 17th century.
7. The latest development in Urbanization was noticed in the continent of ……..
8. In 1950 …………… percentage of the world’s population was Urban.
9. The removal of ……… is a Himalayan task for urban local bodies.
10. Industries in and around the Urban centers pollute the atmosphere with and ……… gases.