1. The Asian insect called the woolly adelgid (ah-DELL-jid) has killed many hemlocks in Shenandoah National Park. This park, in the Appalachian Mountains, is in which state — Michigan or Virginia?
2. Asian long-horned beetles, which probably arrived in wooden pallets shipped from China, have infested many trees in the most populous Midwestern city. This infestation continues to destroy many trees in which city — Chicago or Topeka?
3. The green crab, which is native to northern Europe, was first seen on the U.S. West Coast in 1989. This sighting occurred in what bay near the Golden Gate Bridge — Prudhoe Bay or San Francisco Bay?
4. European wild boars, descended from animals that escaped from a nearby hunting preserve in the early 1900s, are known to disturb the natural vegetation in Great Smoky Mountains National Park in which state — North Carolina or Iowa?
5. Africanized, or “killer,” bees were originally taken to Brazil and accidentally introduced into the wild. These bees entered the U.S. through which state that borders the Rio Grande — Mississippi or Texas?
6. Beginning in the 1890s, herds of reindeer, whose present-day numbers are small, were imported from Siberia and released in which state — Utah or Alaska?
7. The Asian tiger mosquito, which can spread diseases to humans, was brought to the U.S. in used tires. This mosquito is now found in most states east of what river, which is over 2,300 miles long — the Connecticut River or the Mississippi River?
8. Since the 1820s, a plant called leafy spurge, which is difficult for ranchers to control, has spread, causing problems in which grassland region — the Great Plains or the Adirondack Mountains?
9. The Chinese tallow tree, whose seeds can be used in candles and soap, has spread throughout the southeastern United States. This tree was first introduced to what state located northeast of Georgia — South Carolina or Arkansas?
10. Biologists are trying to remove lake trout from Yellowstone Lake because they are predators of native fish. Yellowstone Lake is located in which state — New Mexico or Wyoming?
ANSWERS: 1. Virginia 2. Chicago 3. San Francisco Bay 4. North Carolina 5. Texas 6. Alaska 7. Mississippi River 8. Great Plains 9. South Carolina 10. Wyoming
National Geographic Bee, National Geographic Society
