Tectonic plates being pushed together causes earthquakes, and earthquake tremors and volcanic activity are frequent. Given these facts, what causes tremors among the following options:
- tectonic plates coliding
 - fissures of hot, acidic water
 - sensory neurons
 - energy of moving objects
 - Thyroid-stimulating hormone
 - storms
 - the sun
 - richter scale


 

 tectonic plates coliding        