Across
- 4. nine / what was the lift expectancy in 2010 ?
- 5. theory / theory published in 1798
- 7. / what country is predicted to be the most populated?
- 8. / every (choose one) second , minute ,day ,hour the population is increased by three people.
Down
- 1. capacity / number of people an area can support on a sustainable basis given the available space and resources
- 2. / the earth has a set amount of (what)
- 3. / in the late 1900's , experts warned us of the (what) of resources
- 6. billion / in the year 2045 , what will the population be?