What is different between resistence and …

Electrical resistance (R) is the tendency of a material to resist the flow of electric current. A wire having a desired resistance for use in an electric circuit is called a resistor. The resistance of a uniform metallic conductor is directly proportional to its length (l) and inversely proportional to the area of its cross-section (a).

$R = \rho \frac{l}{a}$ where ρ is a constant of proportionality and is called the electrical resistivity of the material of the conductor. 

Electrical resistivity (also known as resistivity) is an intrinsic property of a material that quantifies how strongly a given material opposes the flow of electric current. The resistivity of a uniform metallic conductor is not dependent on its length or its area of cross-section. A low resistivity of a material indicates that the material readily allows the flow of electric current.

At a given temperature, the resistivity of a material remains the same but the resistances of different lengths and different areas of cross-section of a material may be different.