Which factor keeps people from settling near the rocky mountains?

Rugged terrain is the  factor keeps people from settling near the rocky mountains. Thank you for posting your question here at . I hope the answer will help you. Feel free to ask more questions here.

High and rugged terrain.

Explanation:

The rocky mountains are one of the tallest and most rugged and sparsely populated environments of North America. That stretch some 3000 miles of British Columbia to New Mexico.  Due to the harsh weather and climatic extremes. Thus doesn't have a dense population as compared to the plains. Owning to the transportation and the medial needs and distance from the city centers.

Answer (d) may increase or decrease porosity through dissolution or deposition;

Answerlife is suffering;