11.   Faith Duncan was among the archaeologists working to preserve the Paleo-Indian sites that are threatened as fire crews try to extinguish wildfires raging through the park.

12.   He and Moore had worked together on the board of Conservation International, an organization that works to preserve biodiversity around the world.

13.   Jewish groups that have worked to preserve the memory of the Holocaust expressed satisfaction with the verdict.

14.   Later she became chief scientist at the National Oceanic and Atmospheric Administration, founded a company to build undersea vehicles and worked to preserve the ocean.

15.   Public-private efforts have already worked to preserve the mountain.

16.   Supporters of the measure have been working to preserve a fragile coalition with a razor-thin margin to approve the bill.

17.   The agreement said both sides would work to preserve Medicare, Medicaid, education, training, and environmental protection in the budget plan.

18.   The Bermuda National Trust is working to preserve the remains.

19.   The agreement said both sides would work to preserve Medicare, Medicaid, education, training, and environmental protection while balancing the budget in seven years.

20.   The city has worked to preserve its architecturally significant older buildings.