Please be sure your phone while . turning off, driving
to turn off, drive
turning off, drive
to turn off, driving

to turn off, driving. D

Explanation:

very simple example:

please be sure to turn off your phone while driving

c. taught scientists many new things about the earth, but not other planets.

explanation:

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.