1.   In the intermediate zone between a population boom and a population bust, this superfluous genetic material is pruned out.

2.   Although Seattle and Washington had good reputations for racial tolerance, Taylor said, the population boom spurred by the gold rush brought segregation.

3.   And for about a half century after the depression, the region would undergo another population boom, all the while without a single strike by a major hurricane.

4.   But the population boom brought its share of problems.

5.   Clearly, the population boom has much to do with how the far-flung descendents of the first Americans are finding their roots and choosing to describe themselves.

6.   Drought can cause a population boom or bust for animals and plants.

7.   Graduated licensing laws are gaining popularity as more states increase speed limits, suburban roads grow more congested and the nation expects a teen-age population boom.

8.   In the north-central region, a quarter of the agricultural lands in the foothills have been turned into subdivisions to accommodate a population boom.

9.   Kabul is particularly ill-equipped for a population boom because of the destruction wrought during the civil war.

10.   More will suffer in the future as our water pipes age, our population booms and the germs in our tap multiply.