Answer:
If Earth's resources were completely used up, the consequences for the human population would be severe.
Firstly, the availability of basic necessities such as food, water, and energy would become scarce, leading to widespread famine, thirst, and lack of power. The depletion of resources such as oil, natural gas, and coal would cause the collapse of modern transportation, industry, and communication systems, leading to widespread poverty and social upheaval.
Moreover, without natural resources such as forests, minerals, and fertile soil, the human population would face environmental degradation and loss of habitat. This would lead to a decline in biodiversity and a reduction in the availability of essential ecosystem services, such as pollination and pest control.
In addition, the depletion of resources could lead to conflicts over the remaining resources, with countries, communities, and even individuals vying for control of the dwindling supplies. This could result in war, violence, and mass migration, leading to further instability and suffering for the human population.
In conclusion, if Earth's resources were completely used up, the consequences for the human population would be far-reaching and devastating, with severe impacts on health, security, and well-being.