Savannah vs Teresina

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A savanna or savannah is a mixed woodland-grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. The open canopy allows sufficient light to reach the ground to support an unbroken herbaceous layer consisting primarily of grasses.Savannas maintain an open canopy despite a high tree density. It is often believed that savannas feature widely spaced, scattered trees. However, in many savannas, tree densities are higher and trees are more regularly spaced than in forests. The South American savanna types cerrado sensu stricto and cerrado dense typically have densities of trees similar to or higher than that found in South American tropical forests, with savanna ranging from 800–3300 trees per hectare (trees/ha) and adjacent forests with 800–2000 trees/ha.

Similarly Guinean savanna has 129 trees/ha, compared to 103 for riparian forest, while Eastern Australian sclerophyll forests have average tree densities of approximately 100 per hectare, comparable to savannas in the same region.Savannas are also characterised by seasonal water availability, with the majority of rainfall confined to one season; they are associated with several types of biomes, and are frequently in a transitional zone between forest and desert or grassland. Savanna covers approximately 20% of the Earth's land area.

Source: Wikipedia

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Teresina is the capital and most populous municipality in the Brazilian state of Piauí. Being located in north-central Piauí 366 km from the coast, it is the only capital in the Brazilian Northeast that is not located on the shores of the Atlantic Ocean. With 861,442 inhabitants, Teresina is the 21st largest city in Brazil, and the 15th largest state capital in the country. Together with Timon in the nearby state of Maranhão, it forms a conurbation with a population of about 953,172 inhabitants; the entire metropolitan region of Teresina has over 1,135,920 inhabitants. The only natural barrier that separates Teresina from Timon is the Parnaíba river, one of the largest in the Northeast.

Teresina is the capital with the second best quality of life in the North-Northeast according to FIRJAN. According to IPEA, Teresina is the third safest capital of Brazil (only after Natal and Palmas). It is also among the 50 cities in the world with the highest murder rates, with 315 homicides in 2017.Its motto is the Latin phrase Omnia in Charitatis, which means, in English, "All for charity". The city is the birthplace of, among others, Torquato Neto, who belonged to the Tropicalismo movement. Its Cathedral Catedral Metropolitana Nossa Senhora das Dores, dedicated to Our Lady of Sorrows, is the archiepiscopal see of the Roman Catholic Archdiocese of Teresina.

Source: Wikipedia