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The area spread over 25,500 km 2 having around 3.9 million people or about 40% of the total population of the area. According to the December 2001 census there were 271 Royal Bengal Tigers and other animals in the Indian portion of the Sundarban forest, spread across 9.630 km 2. The floor of the Sundarbans varies from 0.9 m to 2.11 m above sea ...
The table starts counting approximately 10,000 years before present, or around 8,000 BC, during the middle Greenlandian, about 1,700 years after the end of the Younger Dryas and 1,800 years before the 8.2-kiloyear event. From the beginning of the early modern period until the 20th century, world population has been characterized by a rapid growth.
The table below shows annual population growth rate history and projections for various areas, countries, regions and sub-regions from various sources for various time periods. The right-most column shows a projection for the time period shown using the medium fertility variant. Preceding columns show actual history.
The present Sundarban National Park was declared as the core area of Sundarban Tiger Reserve in 1973 and a wildlife sanctuary in 1977. On 4 May 1984 it was declared a national park. It is a UNESCO World Heritage Site inscribed in 1987, [ 2 ] [ 3 ] and it has been designated as a Ramsar site since 2019. [ 1 ]
The Sundarbans has a population of over 4 million [78] but much of it is mostly free of permanent human habitation. Despite human habitations and a century of economic exploitation of the forest well into the late 1940s, the Sundarbans retained a forest closure of about 70% according to the Overseas Development Administration (ODA) of the ...
Life expectancy in the U.S. was just 47.3 years old in 1900. It rose steadily for over a century until it peaked at 78.9 years in 2014 before declining in 2015, reaching 76.4 years in 2021 ...
Population growth is the increase in the number of people in a population or dispersed group. The global population has grown from 1 billion in 1800 to 8.2 billion in 2025. [ 3 ] Actual global human population growth amounts to around 70 million annually, or 0.85% per year.
World population pyramid from 1950 to projected in 2100 (UN, World Population Prospects 2017) A population pyramid (age structure diagram) or "age-sex pyramid" is a graphical illustration of the distribution of a population (typically that of a country or region of the world) by age groups and sex; it typically takes the shape of a pyramid when the population is growing. [1]