Answer:
6 billion
Explanation:
The world's population reached its first billion in 1804. By the year 1960, there were approximately three billion of people on earth. By the year 1999, the population grew to 6 billion.
According to recent prognostics, by the year 2024, the world's population would reach eight billion people.
The world population is the total number of humans currently occupying the earth. The highest population growth rates happened between the years 1950-1970.
In Piaget's theory of childhood development, this demonstrates <u>egocentrism.
</u>The child is observing the world through her own eyes, according to what is happening to her. She knows that a pacifier and a rattle help her when she is sick, so she thinks the same things will help her mom get better. She is unable to realize that what is good for her may not be good for others.<u>
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