How did Earth’s first atmosphere form?

It formed from hot mix of gases and solids.

Explanation:

In the beginning "Earth" (wasn't named yet) was just molten. As it started to cool down, an atmosphere waas formed from gases from volcanoes. It contained methane, hydrogen sulfide, and A LOT of Carbon Dioxide

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive

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).