What contributed to modern maps becoming far more accurate?

What contributed to modern maps becoming far more accurate?

• A. Hand-drawn sketches
• B. Aerial photography and satellite images
• C. Compass and star navigation only
• D. Paper maps

Answer: (B)

Modern maps become far more accurate when data about the Earth's surface comes from aerial photographs and satellite images. These methods capture real, georeferenced details across large areas, and when fed into geographic information systems (GIS) and combined with ground surveys, they provide precise locations, measurements, and features. This setup also allows maps to be updated as landscapes change, keeping them current. By contrast, hand-drawn sketches depend on the mapper’s notes and can be inconsistent; compass and star navigation, while essential for finding direction, doesn’t by itself produce a precise, scalable map; and paper maps, though useful, cannot be refreshed quickly or carry the layered, georeferenced data that digital maps offer.

Modern maps become far more accurate when data about the Earth's surface comes from aerial photographs and satellite images. These methods capture real, georeferenced details across large areas, and when fed into geographic information systems (GIS) and combined with ground surveys, they provide precise locations, measurements, and features. This setup also allows maps to be updated as landscapes change, keeping them current. By contrast, hand-drawn sketches depend on the mapper’s notes and can be inconsistent; compass and star navigation, while essential for finding direction, doesn’t by itself produce a precise, scalable map; and paper maps, though useful, cannot be refreshed quickly or carry the layered, georeferenced data that digital maps offer.