Freshwater

Freshwater is a term used to describe bodies of water with low salinity levels, typically less than 1%. These include lakes, rivers, streams, and ponds. Freshwater is essential for life and plays a crucial role in various ecosystems.

Characteristics of Freshwater

• Low Salinity: Unlike seawater, freshwater has a low concentration of dissolved salts.
• Source: Freshwater primarily comes from precipitation, such as rain and snowmelt, as well as underground aquifers.
• Importance: It is vital for drinking, agriculture, and sustaining aquatic life.

Uses of Freshwater

Freshwater has numerous uses, including:

• Drinking water for humans and animals
• Irrigation for agriculture
• Power generation through hydroelectric dams
• Habitat for aquatic plants and animals

Threats to Freshwater Ecosystems

Despite its importance, freshwater ecosystems face various threats, including:

• Pollution from industrial, agricultural, and urban runoff
• Over-extraction for human use
• Loss of habitat due to human development
• Introduction of invasive species

Conservation of Freshwater

Conserving freshwater is essential to ensure its availability for future generations. This can be achieved through:

• Reducing pollution through proper waste management
• Implementing sustainable water use practices
• Protecting and restoring freshwater habitats
• Educating the public about the importance of freshwater conservation

Study Guide

1. Define freshwater and provide examples of freshwater bodies.
2. What are the characteristics of freshwater?
3. List three uses of freshwater.
4. Identify two threats to freshwater ecosystems.
5. Discuss one method for conserving freshwater.