7. which of the following were the cost of mining? choose all that apply. streams that were polluted and forest cut down. permanent settlements began. foreign miners were treated unfairly. lawlessness and disorder were rampant.

The answer is Streams that were polluted and forest cut down.
The cost of mining should only involve things that created as a direct result of the operation.
Before the mining process even began, the company first need to open up a path for mining sites by cutting down surrounding trees. In the mining process, the residual waste would pollute the river and endanger all organisms that use the water source.