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The difference between the temperature of the polar and equatorial zones causes atmospheric...
The oxygen cycle describes the movement of oxygen within its three main reservoirs.
The rise and drop of sea levels caused by the gravitational force of the Moon.
The decisive factor that determines the climate zones of mountains is the altitude above sea level.
The diameter of our galaxy is about 100,000 light years; it contains more than 100 billion...
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Wind, as an external force, plays an important role in shaping deserts.
What secrets does the Moon have? Who were the first men on the Moon? You’ll find out everything...