NASA | Aquarius Water Cycle

The video discusses the crucial role of salt in daily life and Earth's climate, focusing on sea surface salinity's impact on global ocean circulation and the water cycle. It explains how salinity changes due to evaporation, precipitation, and runoff, affecting water movement. The video introduces the Aquarius sensor, which provides NASA with space-based salinity measurements to improve climate predictions.

What is one of the most significant roles of salt in Earth's climate?

• Enhancing the taste of food

• Providing information on global ocean circulation

• Increasing the temperature of the ocean

• Reducing the acidity of rainwater

How does water primarily move from the ocean to the atmosphere?

• Via evaporation

• Through underground rivers

• Through animal consumption

• By ocean currents

What percentage of global evaporation occurs over the ocean?

• 92%

• 78%

• 86%

• 50%

What happens to salt when saltwater evaporates or freezes?

• It decreases in concentration

• It forms new compounds

• It is left behind, increasing salinity

• It dissolves in the air

What is the purpose of the Aquarius sensor?

• To measure ocean temperature

• To track marine life

• To provide space-based measurements of sea surface salinity

• To monitor ocean pollution levels