Properties of Saltwater

• Density: Saltwater is denser than freshwater due to the presence of dissolved salts.
• Freezing Point: The presence of salts lowers the freezing point of saltwater compared to freshwater.
• Boiling Point: Saltwater has a higher boiling point than freshwater.
• Conductivity: Saltwater is a better conductor of electricity than freshwater due to the presence of ions.
• Viscosity: Saltwater is more viscous than freshwater.

Ecological Importance

Saltwater supports a diverse range of marine life, including fish, plants, and microorganisms. It also plays a crucial role in regulating the Earth's climate and weather patterns.

Human Impact

Human activities such as overfishing, pollution, and climate change have significantly impacted saltwater ecosystems, leading to loss of biodiversity and disruption of marine food chains.

Study Guide

1. Define saltwater and explain its composition.
2. Discuss the properties of saltwater and how they differ from freshwater.
3. Explain the ecological importance of saltwater and its role in supporting marine life.
4. Describe the human impact on saltwater ecosystems and the consequences of these impacts.
5. Research and present a case study on a specific saltwater ecosystem and the challenges it is facing.

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