OCEANOGRAPHY

1. OCEAN
2. ANCIENT HUMANS  NAUTICAL KNOWLEDGE
3. SEA
4. BANK-COST-BEACH
5. BEACHES
6. COASTAL MANAGEMENT
7. ISLANDS
8. WORLD ISLANDS
9. WAVES –CURRANTS
10. SEA STORM
11. RIVE-LAKE-WELL
12. DAM
13. LAKE-WELL
14. WATERFALLS
15. FLOOD
16. REEF

    

The ocean dominates Earth’s surface and greatly affects daily life. It regulates Earth’s climate, plays a critical role in the hydrological cycle, sustains a large portion of Earth’s biodiversity, supplies food and mineral resources, constitutes an important medium of national defense, provides an inexpensive means of transportation, is the final destination of many waste products, is a major location of human recreation, and inspires our aesthetic nature.
Today’s sense of urgency about ocean studies is precipitated by human impacts on oceanic systems and the need for a better understanding of the ocean’s role in controlling global chemical, hydrological, and climate processes. The nation is faced with pressing marine research problems whose timely solution will require increased cooperation between federal agencies and academic scientists. Many of these problems arise from the need to accommodate multiple uses of the ocean and from the ever-increasing concentration of the U.S. population near our coasts. Oceanographic research is important to many of the nation’s social concerns, including the following:

RIVERS AND LAKES OF THE WORLD

1. ASIA
2. AMERICAS
3. AFRICA
4. EUROPE
5. AUSTRALIA
6. ANTARCTICA

There are 76 rivers in the world over 1000 miles long. A lot of people think that rivers always flow south, but 4 of the 10 longest rivers in the world flow north. The United States alone has around 3.5 million miles of rivers.