The Properties of Sea Water
Maharashtra Board · Class 9 · Geography
Most important questions from The Properties of Sea Water for Maharashtra Board Class 9 Geography board exam 2026. MCQs, short answer, and long answer questions with marks.
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Sample Questions
Which factors affect the surface temperature of seawater?
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Ocean currents, Rainfall, Salinity, Seasons
Ocean currents, rainfall, salinity, and seasons all affect seawater temperature. Moon phases do not directly impact sea surface temperature.
The Dead Sea has extremely high salinity because of which factors?
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Low rainfall, High evaporation, Low supply of freshwater
The Dead Sea has 332‰ salinity due to low rainfall, high evaporation, and minimal freshwater input from rivers.
Temperature of seawater decreases with increasing depth.
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True
Temperature decreases with depth because sunlight penetration decreases, making deeper waters colder.
What instruments are used to measure salinity?
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Hydrometer, Refractometer, Salinometer
Hydrometer, refractometer, and salinometer are specifically designed to measure salinity. Thermometer measures temperature.
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