Taken together, substance abuse costs the united states over a year. a. half a billion dollars b. a billion dollars c. half a trillion dollars d. a trillion dollars

The best answer choice from the list provided here, to answer the question: Taken together, substance abuse costs the United States over a year, would be, C: Half a trillion dollars.

Explanation:

Drug abuse, and substance abuse in the United States has risen to the point that the costs for its consequences, especially in young people, are costing both the government and the healthcare system more than ever before. In fact, according to the latest statistics, substance abuse in the United States now costs , including the healthcare system, above 740 billion dollars annually. This information can be found on the website of the National Institute on Drug Abuse NIDA on their statistical data for the years from 2007, to 2018.  

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.