Is latitude required to determine the coordinates of an area?
Longitude is one of the required data points needed for determining coordinates. Latitude is the other angle required to determine coordinates of an area.
The answer is yes.

Can vitamin C rich fruits be bad for health?
Oranges are fruits that are rich in vitamin C. Oranges are very acidic fruits that can wear down tooth enamel. Too much Vitamin C can cause nausea and diarrhea.
The answer is yes.

Would an astrologer focus on the densest terrestrial planet for a Friday horoscope?
Friday is associated with Venus in astrology. Venus is the densest of the terrestrial planets.
The answer is yes.

Would the chef at Carmine's restaurant panic if there was no basil?

Carmines is an Italian family-style restaurant. Basil is an essential in Italian cooking.
The answer is yes.