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Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...
Seasonal dead zones are annually occurring, typically in warm months of summer and autumn. Diel cycling hypoxia is a specific seasonal dead zone that only becomes hypoxic during the night; The type of dead zone can, in some ways, be categorized by the time required for the water to return to full health.
Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. [2]
Biogeography (an amalgamation of biology and geography) is the comparative study of the geographic distribution of organisms and the corresponding evolution of their traits in space and time. [146] The Journal of Biogeography was established in 1974. [147] Biogeography and ecology share many of their disciplinary roots.
The conference endorsed the goal of raising half the existing Least developed countries out of the LDC category in 2022. As with the Seoul Development Consensus drawn up in 2010, there was a strong emphasis on boosting productive capability and physical infrastructure, with several NGOs not pleased with the emphasis placed on the private sector.
The polarity (throw direction) of the main bounding faults typically alternates along the length of the rift. The asymmetry of a half-graben strongly affects syntectonic deposition. Comparatively little sediment enters the half-graben across the main bounding fault because of footwall uplift on the drainage systems. The exception is at any ...
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Half-Earth: Our Planet's Fight for Life is a 2016 book by the biologist E. O. Wilson, the last in a trilogy beginning with The Social Conquest of Earth (2012) and The Meaning of Human Existence (2014). Half-Earth proposes that half of the Earth's surface should be designated a human-free natural reserve to preserve biodiversity. [1]