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Answer:

Across
1Those with moderate temperatures and adequate precipitation amounts are usually more densely _____.
4Argued against Malthus. Stated that as population pressure increases, cultures farm more _____ and increase output
5A new school of thought raises concerns about sustainable use of the planet, claiming that Earth's resources can only support a finite _____. (The prefix neo-means NEW)
6 2. This is that it would expand at an ever increasing rate. At the same time, he observed that food productivity was growing more slowly at an arithmetic or constant rate. In his essay on population Matlhus speculated that Britain's accelerated population growth would contribute to a food shortage and famine by the late 1800s. He _____ the term over population
Down
2Widespread occurrence of an infectious disease in a community at a particular time
3The number of working-age _____ (ages 15-64) divided by the number of persons 65 and older

 
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