Which statement is true? a. rocks do not contain any mineral matter. b. most rocks are composed of single mineral. c. most rocks are made up of a mixture of minerals.

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.

answer; aristotle;

a family can go through many changes which would make it complex. having children can cause a change and increase the complexity. this would change the distribution of authority and management, as the older siblings will at some point be in charge of the younger ones, and discipline must be distributed when they get in trouble.