In this activity, draw and count atoms to understand how nitrogen and hydrogen react to make ammonia. Draw the reactants using the drawing tool. Keep in mind that one molecule of nitrogen has two bonded atoms, and one molecule of hydrogen has two bonded atoms.

Chemical equation - N2 + 3H2 = 2NH3
[the two at the end of the first two are placed below the letter, aswell as the three in the last one]

equal distribution i think.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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).