Answer: The statement "The countries with the highest populations in the world have the fastest population growth" is false.
Explanation: While it is true that some countries with large populations may also experience significant population growth, it is not a universal rule. Population growth is influenced by various factors such as birth rates, death rates, fertility rates, migration, and government policies.
For example, China and India are currently the two most populous countries in the world. However, their population growth rates have been slowing down in recent years due to various factors like government policies and changing demographics.