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Topsoil is composed of mineral particles and organic matter and usually extends to a depth of 5-10 inches (13–25 cm). Together these make a substrate capable of holding water and air which encourages biological activity. There are generally a high concentration of roots in topsoil since this is where plants obtain most of their vital nutrients.
The Salton Sea is a shallow, landlocked, highly saline endorheic lake in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough, which stretches to the Gulf of California in Mexico. The lake is about 15 by 35 miles (24 by 56 km) at its widest and longest.
An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...
Boston Harbor. Coordinates: 42°20′30″N 70°57′58″W. Topographic map of Boston Harbor. USCGC James pulls into Harbor in August 2015. Boston Harbor is a natural harbor and estuary of Massachusetts Bay, located adjacent to Boston Massachusetts. It is home to the Port of Boston, a major shipping facility in the Northeastern United States.
Soil bulk density, when determined at standardized moisture conditions, is an estimate of soil compaction. [60] Soil porosity consists of the void part of the soil volume and is occupied by gases or water. Soil consistency is the ability of soil materials to stick together. Soil temperature and colour are self-defining.
Website. cpchem.com. Chevron Phillips Chemical (CPChem) is a petrochemical company jointly owned by Chevron Corporation and Phillips 66. The company was formed July 1, 2000, by merging the chemicals operations of both Chevron Corporation and Phillips Petroleum Company. As equally-owned company, it is governed by a board of directors composed of ...
A satellite view shows mud and debris near Old Fort Elementary School, in the aftermath of Hurricane Helene, in Old Fort, North Carolina, on Oct. 2, 2024. / Credit: Maxar Technologies. Old Fort is ...
Grand Coulee is a large coulee on the Columbia River Plateau. This area has underlying granite bedrock, formed deep in the Earth's crust 40 to 60 million years ago. The land periodically uplifted and subsided over millions of years giving rise to some small mountains and, eventually, an inland sea. From about 10 to 18 million years ago, a ...