Read the article: https://www. npr. org/sections/goatsandsoda/2021/02/0 5/964447070/where-did-the-coronavir us-variants-come-from Explain how the three ingredients of evolution: variation, selection, and time are working in the situation. Minimum 3 sentences.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

ask your friends for what they got then copy it down if you don't have any friends which is fine than google it or pay the teacher