or log in
It is a sedimentary rock made up of loosely structured, rough grains of rock.
The last Ice Age ended about 13 thousand years ago.
Due to the effect of both exogenic and endogenic forces, rocks constantly change. This is called...
Lateral compressive forces cause rocks to form folds. This is how fold mountains are formed.
Cold and warm fronts are formed where bodies of cold and warm air meet.
Waves play an important role in forming the coast.
Above a certain altitude snow does not melt, not even in summer.
This animation demonstrates different types of soil.