Which statement best describes the network of transportation options in modern-day europe?
a) they are completely funded by corporations.
b) they are mostly owned by national governments.
c) they have proved to be unreliable for most commuters.
d) they were created in the late-1900s because of the cold war.

B

Explanation:

road, rail, air and water are all prevalent and important across Europe.

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; calendar;