Exploring the Seas

Seas are large bodies of saltwater that are connected to an ocean and are partially enclosed by land. They play a vital role in the Earth's ecosystem and are home to a diverse range of marine life.

Key Features of Seas:

• Salinity: Seas have a high salt content, which is usually lower than that of oceans.
• Biodiversity: They support a wide variety of marine organisms, including fish, mollusks, and coral reefs.
• Climate Regulation: Seas play a role in regulating the Earth's climate by absorbing and releasing heat.
• Commercial Importance: Many seas are important for trade, fishing, and transportation.

Study Guide:

1. What is the primary difference between seas and oceans?
2. How does the salt content of seas compare to that of oceans?
3. Give examples of important seas for commercial activities.
4. Explain the role of seas in regulating the Earth's climate.
5. Describe the biodiversity found in seas.

Fun Fact:

The largest sea on Earth is the Philippine Sea, covering an area of over five million square kilometers.