How do roots provide water for the plant

The roots suck up the water in the ground. Then transfer it to the plant.

Explanation:

it cools slower in the earth meaning the crystals have more time to form than lava on the surface

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).