Question

______ have been used as a grid measurement system for navigating the earth for hundreds of years.
a. gps systems
b. the stars
c. latitude and longitude
d. compasses

please select the best answer from the choices provided.
○ a
○ b
○ c
○ d

Explanation:

• Option A: GPS systems are modern and not hundreds of years old.
• Option B: The stars are used for navigation but not a grid measurement system.
• Option C: Latitude and longitude form a grid system for Earth navigation and have been used for centuries.
• Option D: Compasses show direction, not a grid measurement system.

Answer:

C. Latitude and longitude