materials are garments that allow you to work and create two-dimensional objects, that is not real .
The density is a feeling like the depth that comes only with the humidity and wet, that is when you soak .
smog comes from er gas cans that have both that !
earthquakes are caused by the earthquake .
An atom is inside a cell and a nucleus around which we revolve protons and electrons.
The oil is a mixture that is under water .
A wind turbine is an engine placed on a pole where there are shovels .
difference between iron and steel?
The iron is lighter .
Renewable energy is energy that once used can reuse .
how to use solar energy?
It does heat the water with sunlight .
Nuclear power is renewable and exhaustible .
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