1.   And while retail sales fell one-tenth of a percentage point in July, the drop did not mean consumers wanted to buy less.

2.   Dissolved carbon dioxide makes air more acidic, so a sudden drop in pH means carbon-dioxide levels are spiking.

3.   For tourists, the drop means a good deal.

4.   Otter experts are not sure what the drop in numbers means for the health of the species, now and in the future.

5.   That drop often means multiple bosses.

6.   The drop means Japanese exporters have less foreign currency to exchange for yen.

7.   The drop means the number of Philadelphia-area manufacturers seeing gains in business is smaller than a month ago -- a sign the economy is slowing.

8.   The drop means the number of manufacturers seeing gains in business is smaller than a month ago, a sign the economy is slowing.

9.   The drop means the number of Philadelphia-area manufacturers seeing gains in business is smaller than a month ago, a sign the economy is slowing.

10.   To companies, the drop means lower borrowing costs, which can also spur consumers and businesses to spend more.