You are presented with the question "what causes tremors?" and the following answer choices: 
- tectonic plates coliding
 - fissures of hot, acidic water
 - sensory neurons
 - energy of moving objects
 - Thyroid-stimulating hormone
 - storms
 - the sun
 - richter scale

Now knowing that tectonic plates being pushed together causes earthquakes and earthquake tremors and volcanic activity are frequent, choose the best answer.


 

 tectonic plates coliding        