Given that the amount of space on Earth has not changed since Malthus's time, what space-related factor has most enabled the great increase in the carrying capacity for humans?
A) Domestication of food plants and animals
B) Medical advances that decreased disease
C) Much greater crop yields on a given piece of land
D) Technological advances that allowed industrialization
E) People building transport systems and congregating into cities

Question

Quizplus · Accepted Answer

The most significant space-related factor that has increased the carrying capacity for humans is much greater crop yields on a given piece of land. The advancements in agricultural technology and practices, such as the use of fertilizers, selective breeding, and genetically modified crops, have helped to increase the productivity of land and improve crop yields. As a result, more food can be produced on the same amount of land, which has enabled the Earth to support a larger human population. The other options (A, B, D, and E) have also contributed to the growth in the carrying capacity of humans, but to a lesser extent compared to the increase in crop yields.

Given That the Amount of Space on Earth Has Not