Question

What was world population at the beginning of the 21st century?​

Answer 1

Answer:

hi

Explanation:

the answer is

0.8 Billion

Answer 2

Nearly a quadrupling of world population. At the beginning of the 20th century, world population was approximately 1.6 billion; by the end of the century, it had reached 6.1 inhabitants. Highest annual population growth rate.

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