As of 2011, the human population reached over
A - 7 million people
B - 10 billion people
C - 7 billion people
D - 3 billion people
Answer: C - 7 billion people
As of 2011, the human population reached over
A - 7 million people
B - 10 billion people
C - 7 billion people
D - 3 billion people
Answer: C - 7 billion people