To reach the first billion in population, mankind took
A
a million years.
B.
a trillion years.
C
ten thousand years.
D
one lakh years.
Answers
Answered by
0
Answer:
it's C and I think more probably it's just 200years to 2000 years I read in a survey...that amount of population human should have increase in 1lakh years is achieved by mankind in just 200 years
Answered by
0
Answer:
option c ten thousand years
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