Practicing Success
In _________ years World Population increased from 6 billion to 7 billion. |
7 30 15 12 |
12 |
The correct answer is Option (4) → 12 The global population milestone of reaching 6 billion was achieved in the late 1999s, and the subsequent milestone of 7 billion was reached in 2011. This signifies a significant population growth rate over a span of 12 years. |