Watercourses

People have always preferred to settle near rivers. What are the advantages and disadvantages of living by the water?

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The Gregorian calendar

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The water cycle (intermediate)

Water on Earth is in a continuous state of change. The water cycle includes processes...

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When masses of cold and warm air meet, weather fronts develop.

Loess

It is a sedimentary rock made up of loosely structured, rough grains of rock.

Atmospheric circulation

The difference between the temperature of the polar and equatorial zones causes...

Ocean currents

The Great ocean conveyor is a planet-wide system of ocean currents, which has a great...

The development of lakes

Standing bodies of water can form in depressions on the surface by both endogenic and...

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