Which of the following factors would be likely reason for low population density

Your answer would be a harsh natural environment

The factor that would be likely reason for low population density is a harsh natural environment.

Definition:

Low population density:

The population in a specific area is small, or low.

Explanation:

The reason why "a harsh natural environment" would be the correct answer because people wouldn't want to live a bad natural environment. An individual would most likely choose a place to live in because it is easy to survive in, and would give them benefits. To have the individual survive, the surroundings in the environment has to be physically stabled for them, or favorable, and supportive. This means that an environment shouldn't harm the individual. Places will low population density are most of the time caused by harsh environments, which makes people find somewhere else to live. Places with high population densities are more likely favorable for the person, and could benefit them while they're are safe. Places  will high population densities tend to be more safer, and physically stable for the person to live in. This is the reason why this answer would be correct.

Why the other answer choices are incorrect:

Answer choice "being located by a harbor" would be incorrect because:

Being located by a harbor doesn't cause the low population density in a specific place. A harbor is place that is mostly on the coast line, where you can find boats at. Harbors are a source of shelter. Harbors keep away the dangerous currents of water, which makes people live near harbors. This is the reason why this answer choice would be eliminated.

Answer choice "having abundant natural wealth" would be incorrect because:

Having natural wealth actually helps people out when they choose where to live, and this tends to give places a high population density. A place that has natural wealth means that it has items or objects in that place that are valuable, in which people tend to strike for. For example, when California was known to have a valuable that is gold, people started to move there because of it and the population density increased by a lot. This is the reason why this answer choice would be incorrect.

Answer choice "low infant mortality rates" would be incorrect because:

This is also something that does not cause the low population density.  A low infant mortality rate means that there is little infants, or babies, that are dying. If there are not a lot of babies dying, then the population would increase because there would be more babies that are surviving, which is adding on to the population. This is the reason why this answer choice would be eliminated.

-Julie