Overpopulation can lead to:

The correct answer is: All of the above

Overpopulation can lead to resource depletion, environmental degradation, and social tensions.

• Resource depletion occurs when the rate of consumption of a resource exceeds the rate at which it can be replenished. This can lead to shortages of the resource, which can have a number of negative consequences, such as increased prices, economic instability, and conflict.
• Environmental degradation occurs when human activities damage the environment. This can include pollution, deforestation, and climate change. Environmental degradation can have a number of negative consequences, such as the loss of biodiversity, the disruption of ecosystems, and the contamination of water supplies.
• Social tensions can arise when there is a mismatch between the number of people and the resources available to support them. This can lead to competition for resources, which can in turn lead to conflict. Social tensions can also arise due to the strain that overpopulation can place on infrastructure, such as housing, transportation, and healthcare.

In addition to these three main consequences, overpopulation can also lead to a number of other problems, such as increased crime, poverty, and unemployment.