The of the earth does not transmit s waves.

Earthquakes produce P- and S-waves which pass through the Earth. ... S-waves are not transmitted through the liquid outer core. This produces a 'shadow zone' on certain parts of the Earth's surface where S-waves are not recorded, and this is used as the main piece of evidence to deduce the size of the core.

Answera discharge of static electricity;

Answer (d) the greenhouse effect is primarily caused by car and trucks;