Answer Soon Please!! A bolide is an unusually bright shooting star that can be seen from a large portion of Earth.

The probability of a bolide event in a region depends mainly on the:
(land area, longitude, time of year)
Of the places listed, (austraila, china, canada, greenland) is the least likely to host a bolide event.

Edit: I guessed and got it correct- it is Land Area and Greenland )