The chief purpose of congressional committees is to?

The correct answer is

hold hearings so that bills can be evaluated and studied prior to voting.

because. . .  

Congressional committees fall into four categories: standing, select, joint and conference committees. All four types of committees accept bills and ultimately decide whether to turn them into laws.

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.

i feel as if they would both catch on before to long because they would see them to frequent