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This animation demonstrates different types of soil.
When the temperature of the cooling air reaches dew point condensation occurs because air is...
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
The weather can be forecast with different meteorological instruments.
There is a little village in Northern Hungary in Central Europe that is a hiding place for a...
The surface of the Earth has been formed into its present state both by external and internal...
Natural gas and petroleum are among the most important sources of energy and raw materials today.