How does solid rock become soil? Question 4 options:

it breaks down and combines with water, air, and organic matter.

it breaks down and changes into liquid

it falls apart and combines with particles in the air.

it splits apart and combines with plant roots

A solid rock becomes soil when it breaks down and combines with water, air, and organic matter.

it breaks down and combines with water, air , and organic matter.

answer; i believe the answer is (polygenic inheritance;

the last one: artificial selection/genetic engineering

plant breeding is modifying the genetic composition of the plant - but this isn't cloning (which is specifically introducing a gene into a genome). but you are artificially selecting for the phenotype that you want.

the second one is literally genetic engineering - the gene would have been cloned first and then inserted or genetically engineered into the new plant cell (the cotton).