Geologists may choose to lick a mineral to identify it. what mineral is the geologist expecting with this test

The war began as a fight between mayans and the landowners of the country. the main causes of the guatemalan civil war was started by the greed of the united fruit company, the fear of communism, and the racism toward the  mayan  people.

I'm pretty sure it's c. extremely gradual but not 100% sure though.

Answerdistinguish between the mercalli scale and the richter scale;