The following options are relevant to the costs of mining:
- Streams that were polluted and forests cut down - Environmental degradation is a significant cost of mining activities.
- Foreign miners were treated unfairly - Social and economic consequences, including discrimination and exploitation of miners.
- Lawlessness and disorder were rampant - Mining booms often led to chaotic conditions and a breakdown of law and order.
Therefore, the applicable answers are 1, 3, and 4.
Option 2, "permanent settlements began," does not represent a cost of mining; rather, it reflects a social change that could result from mining activities.