Which of these factors is involved in earthquake formation? plates getting larger
rocks breaking
stress that decreases
faults that remain stationary

rocks breaking

Explanation:

Breaking rocks is one the factors that is involved during the formation of an earthquake. As rock breaks, there is a sudden release of energy into the surrounding.

When a rock breaks, it is said to be fractured. Such rock fracturing that involves movement of the earth leads to the formation of earthquake. In this process, there is a sudden burst of seismic waves into the environment. Surface waves will cause the damage on the earth surface. The basis of earthquake formation is ability of rocks to  break and release a sudden burst of energy.

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  a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set