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A leaf (pl.: leaves) is a principal appendage of the stem of a vascular plant, [1] usually borne laterally above ground and specialized for photosynthesis.Leaves are collectively called foliage, as in "autumn foliage", [2] [3] while the leaves, stem, flower, and fruit collectively form the shoot system. [4]
In plant taxonomy, which is the study of the classification and identification of plants, the morphology of plant's flowers are used extensively – and have been for thousands of years. Although the history of plant taxonomy extends back to at least around 300 B.C. with the writings of Theophrastus , [ 124 ] the foundation of the modern ...
Bergen County is the most populous county in the U.S. state of New Jersey. [8] Located in the northeastern corner of New Jersey, Bergen County and its many inner suburbs constitute a highly developed part of the New York City metropolitan area, bordering the Hudson River; the George Washington Bridge, which crosses the Hudson, connects Bergen County with Manhattan.
The North American craton is the bedrock forming the heart of the North American continent, and the Canadian Shield is the largest exposed part of the craton's bedrock. The Canadian Shield is part of an ancient continent called Arctica , which was formed about 2.5 Ga during the Neoarchean era.
Hydraulic fracturing [a] is a well stimulation technique involving the fracturing of formations in bedrock by a pressurized liquid. The process involves the high-pressure injection of "fracking fluid" (primarily water, containing sand or other proppants suspended with the aid of thickening agents) into a wellbore to create cracks in the deep rock formations through which natural gas, petroleum ...
Finland covers a total area of 338,145 square kilometres (130,559 sq mi), including a land area of 303,815 square kilometres (117,304 sq mi), [4] and has a population of 5.6 million. [10] Helsinki is the capital and largest city. The vast majority of the population are ethnic Finns.
The park covers 894 sq mi (2,320 km 2), with 209 sq mi (540 km 2) of land and 685 sq mi (1,770 km 2) of surrounding waters. The park's northern boundary lies adjacent to the Canadian Lake Superior National Marine Conservation Area along the international border .
Doctor Ivo Robotnik, [b] [3] better known by his alias Doctor Eggman, [c] [4] is a human mad scientist and the main antagonist of the series. Debuting in the first game of the series, Sonic the Hedgehog, he was shown attempting to collect the Chaos Emeralds and turn all of the animals inhabiting the land into robots.