Uh no one. The Indus civilization was dated 1500 BCE - 5000 BCE
Answer:
1. strikes
2. low wages
3. unsafe working conditions
4. social classes
5. ways to teach others trades
Explanation:
This is the answer for you're topic and also I got this from my old computer history so yeah.
<span>While many believed that Native Americans were truly their greatest threat, in reality, it was the simple and mundane things like disease and accidents that did the most damage to the travelers. The fact that they traveled so closely together (and without the help of proper modern medicine) it was easier to get sick and without the ability to heal, eventually die from simple diseases such as the common cold. Other ways pioneers could be injured is by buggy turnovers on the steeper areas of hills and mountains which had more of a rocky flooring.</span>
A is the correct answer! Hope I helped