Because the average life expectancy has been significantly increased and there are a lot more people. If 2 people make 3 children and these children will find their own partners and create another 3 children with them, if all 3 of these initial children will do this, there will be 9 additional people on Earth. Now these 9 people will also want children, etc... So the more people there are, the more children will be made.
Settlement growth has accelerated in the last 55 years due to factors such as urbanization, population growth, and economic development. This has led to the expansion of cities and towns, as well as the development of new infrastructure and housing to accommodate the increasing population. However, this growth has also raised concerns about issues like overcrowding, environmental degradation, and social inequality.
After the end of the major outbreaks of the Plague in the 15th-16th centuries, world human population increased quickly because of new European farming techniques and inventions. Population grew at a steady pace until the mid to late 19th century at which time world population exploded and it has continued to "explode" ever since. Current world human population is approaching 7 billion, where as in the year 1804 the world population was about 1 billion people.
the population in greece has decreased over the last years
The Population Goes Up
the crops
Why world's population has increased rapidly in last hundred years and main problems will cause?
There is 70 dog years in 10 human years but dogs don't really last that long
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10,000 to 90,000 of the armaldillos population
Individual countries make their own censuses in periods of 5 or 10 years, others at more infrequent intervals, but no census of the entire human population has ever been made. Statistics regarding the whole population are made based on a combination of official censuses and estimates by both national and international organisations.
27% for the last 5 years
That's what the scientists are saying but, I think it's more like 71 million years ago. It's interesting. Read this - http://www.bradshawfoundation.com/stanley_ambrose.php