It is observed that some animals get disturbed before earthquake. How ?

How do animals move?

It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic.Name a material that might have been used to make some part of it.

Earthquakes generate sound waves inside the earth. Unlike a gas, the earth can experience both transverse (S) and longitudinal (P) sound waves. Typically the speed of S wave is about 4.0 km s^-1 and that of P wave is 8.0 km s^-1 A seismograph records Pand Swavesfrom an earthquake. The first Pwave arrives 4 min before the first S wave. Assuming the waves travel in straight line, at what distance does the earthquake occur ?