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1. Hydrographic surveys deal with the mapping of -------
- A. large water bodies
- B. large water bodies
- C. large water bodies
- D. large water bodies
Answer: Option A
Explanation:
Hydrographic surveys deal with the mapping of large water bodies, such as oceans, seas, and lakes. This involves measuring and mapping underwater features like depth, currents, and the shape of the seabed to create charts for safe navigation and for various other purposes like coastal engineering and environmental management.
- Mapping the seabed: The core function is to map the underwater terrain to understand the topography of the ocean floor.
- Supporting navigation: The data is used to create nautical charts that are crucial for the safe passage of ships.
- Other applications: Hydrographic surveys are also used for coastal zone management, offshore resource exploration, dredging, and monitoring environmental changes like sea-level rise.
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