Question

12 which of the statements is true concerning the increase in carbon dioxide output? neither a growing population of humans nor an increase in the use of carbon - based fossil fuels has contributed. both a growing population of humans and an increase in the use of carbon - based fossil fuels have contributed. an increase in the use of carbon - based fossil fuels has contributed, but a growing population of humans has not. a growing population of humans has contributed, but an increase in the use of carbon - based fossil fuels has not.

Explanation:

A growing human population leads to more consumption of resources including carbon - based fossil fuels. Also, the increased use of carbon - based fossil fuels directly releases more carbon dioxide into the atmosphere.

Answer:

B. Both a growing population of humans and an increase in the use of carbon - based fossil fuels have contributed.