The correct answer is diseases.
Diseases are caused by many agents or factors found in the environment. Yet, some of these diseases are curable, while some are not. These diseases are curable, but sometimes they take a huge toll on an individual's life that may change that person for his or her whole life, which is why prevention is always better than cure.
It was located in modern day Iraq.
Answer:
The Oregon Trail was used for migration purposes, while the Santa Fe Trail was mainly used for trade purposes.
Explanation:
In 1812, people began moving westward with the hopes of expanison. This moving of people towards west was termed as 'Manifest Destiny.' People used many modes of transporting to west initially but later train routes were established to help people move towards west.
The trails that people used included <em>the Oregon Trail, the Santa Fe Trail, the Mormon Trail, etc.</em>
The Oregon Trail was used by missionaries such as Marcus Whitman for migration purposes. The trail ran from Missouri to Oregon.
The Santa Fe Trail was by traders for trading purposes. The trail was opened after the independence of Mexico from Spain in 1821. It ran from Missouri to Santa Fe.
Thus the correct option is (A).
C bc u can pick it ndjdjejsjs disused