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Puinawai Natural Reserve ( Spanish: Reserva Nacional Natural Puinawai) is the second-largest national park in Colombia. This protected area occupies 10,925 square kilometres (4,218 sq mi) of the Amazon Region of Colombia, roughly 15% of the Guainía Department. The Reserve was created in September 1989 and coincides with three important ...
The San José Lagoon ( Spanish: Laguna de San José) is a shallow saline lake or lagoon located between the municipalities of San Juan and Carolina in northern Puerto Rico. Despite being located in a highly urbanized area this body of water is important for its mangrove forests. [1] [2] The lagoon is located between San Juan and the island's ...
Stereoxylon cuneifolium Ruiz & Pav. Stereoxylon resinosum Ruiz & Pav. Escallonia resinosa is an evergreen shrub or tree native to the Andean forests of Peru, Bolivia and southern Ecuador from 2600 to 4200 meters above sea level. [1] A component of high Andean forests, it is regarded as an important source of raw materials for the Andean peoples.
Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.
A sample of food-grade diatomaceous earth Scanning electron micrograph of diatomaceous earth. Diatomaceous earth (/ ˌ d aɪ. ə t ə ˈ m eɪ ʃ ə s / DY-ə-tə-MAY-shəs), diatomite (/ d aɪ ˈ æ t ə m aɪ t / dy-AT-ə-myte), celite or kieselgur/kieselguhr is a naturally occurring, soft, siliceous sedimentary rock that can be crumbled into a fine white to off-white powder.
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Maya civilization. The Maya civilization ( / ˈmaɪə /) was a Mesoamerican civilization that existed from antiquity to the early modern period. It is known by its ancient temples and glyphs (script). The Maya script is the most sophisticated and highly developed writing system in the pre-Columbian Americas.
fs .usda .gov. Footnotes. [4] The United States Forest Service ( USFS) is an agency within the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands covering 193 million acres (780,000 km 2) of land. [5] The major divisions of the agency are the Chief's Office, National Forest System, State ...