National Parks and Preserves, (1) _______ public lands or bodies of water within a country, set aside by the (2) _______ to protect ecosystems, plant and animal species, scenic landscapes, geologic formations, or historical or archaeological (3) _______.
 National parks are managed primarily for public recreation, (4) _______ exceptional locations where visitors can view wildlife and enjoy the (5) _______. Generally, these protected public lands are off-limits to hunting, livestock grazing, logging, mining, and other (6) _______ that exploit natural resources. Some parks commemorate significant historical events. (7) _______, Gettysburg National Military Park (1895) in Pennsylvania conserves the 13 sq km (5 sq mi) site of the pivotal battle in the (8) ______ Civil War (1861-1865).
 National preserves, sometimes (9) _______ nature or wildlife reserves, often are located within or near national (10) _______. These lands are managed by national governments primarily for wildlife protection or scientific research instead of recreation, and provide "living laboratories" in which scientists observe plant and animal species in their natural habitat. Hunting ,fishing, and mining are permitted within many United States preserves if the activities do not harm natural resources. Many other countries specifically ban such activities in their preserves.