geografia: Geography of Houston

Evidence: 45 • authority: 72

Houston, the most populous city in the Southern United States, is located along the upper Texas Gulf Coast, approximately 50 miles (80 km) northwest of the Gulf of Mexico at Galveston. The city, which is the ninth-largest in the United States by area, covers 601.7 square miles (1,558 km2), of which 579.4 square miles (1,501 km2), or 96.3%, is land and 22.3 square miles (58 km2), or 3.7%, is water. Houston is located in the Gulf Coastal Plain biome, and its vegetation is classified as temperate grassland. Much of the city was built on marshes, forested land, swamp, or prairie, all of which can still be seen in surrounding areas. The city's topography is very flat, making flooding a recurring…

Evidence: 45 • authority: 88

Background Levels of Asbestos Detected throughout the City of Houston, Fourth-Largest City in the United States. Outdoor concentrations of asbestos in urban environments have been suggested as a potential cause of some asbestos-related diseases. This assertion is contingent upon asbestos being at detectable levels in urban environments. Unfortunately, the studies cited are outdated and utilize methodologies that fail to detect both short and thin fibers. Previous studies on urban ambient asbestos concentrations were completed in 1985 utilizing only phase contrast microscopy (PCM). The last published paper to evaluate urban ambient asbestos concentration utilizing analytical transmission ele…

Evidence: 45 • authority: 72

Berkeley ( BURK-lee) is a city on the eastern shore of San Francisco Bay (part of the San Francisco Bay Area) in northern Alameda County, California, United States. It is named after the 18th-century Anglo-Irish bishop and philosopher George Berkeley. It borders the cities of Oakland and Emeryville to the south and the city of Albany and the unincorporated community of Kensington to the north. Its eastern border with Contra Costa County generally follows the ridge of the Berkeley Hills. The 2020 census recorded a population of 124,321. Berkeley is home to the oldest campus in the University of California, the University of California, Berkeley, and the Lawrence Berkeley National Laboratory,…

Evidence: 45 • authority: 72

Connecticut ( kə-NET-ih-kət) is a state in the New England region of the Northeastern United States. It borders Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its capital is Hartford, and its most populous city is Bridgeport. Connecticut lies between the major hubs of New York City and Boston along the Northeast Corridor, where the New York metropolitan area, which includes four of Connecticut's seven largest cities, extends into the southwestern part of the state. Connecticut is the third-smallest state by area after Rhode Island and Delaware, and the 29th-most populous with more than 3.6 million residents as of 2024, ranking…

Evidence: 45 • authority: 72

Dallas is a city in the U.S. state of Texas. Located in northern Texas, it is the ninth-most populous city in the United States and third-most populous city in Texas, with a population of 1.3 million at the 2020 census. Along with the city of Fort Worth, Dallas anchors the Dallas–Fort Worth metroplex, the fourth-most populous metropolitan area in the U.S. and the most populous metropolitan area in Texas, at 8.5 million people. Dallas is a core city of the largest metropolitan area in the Southern U.S. and the largest inland metropolitan area in the U.S. that lacks any navigable link to the sea. It is the seat of Dallas County, covering nearly 386 square miles (1,000 km2) and extending into…

Evidence: 41 • authority: 78

Stany Zjednoczone (United States of America). capital: Washington D.C.. area: 9372610 km2. landlocked: no. land borders: 2. region: Americas. subregion: North America

Evidence: 41 • authority: 72

A border wall is being built along portions of the Mexico–United States border in an attempt to reduce illegal immigration to the United States from Mexico. The barrier is not a continuous structure but a series of obstructions variously classified as "fences" or "walls". Between the physical barriers, security is provided by a "virtual fence" of sensors, cameras, and other surveillance equipment used to dispatch United States Border Patrol (USBP) agents to suspected migrant crossings. In May 2011, the Department of Homeland Security (DHS) said it had 649 miles (1,044 km) of barriers in place. A total of 438 miles (705 km) of new primary barriers were built during Donald Trump's first presi…