Chemical reactor vessel and aerosol can: what they have in common

1. Step 1. Chemical reactor vessel — is part of — Chemical plant. The vessel where the reaction takes place.
2. Step 2. Chemical plant — uses — Sulfuric acid. The first chemical plants produced sulfuric acid and soda.
3. Step 3. Sulfuric acid — is used in — Mineral fertilizer. Superphosphate is made with sulfuric acid.
4. Step 4. Mineral fertilizer — is used in — Genetically modified crops. Intensive farming combines varieties and fertilizers.
5. Step 5. Genetically modified crops — uses — Pesticide. Pest resistance reduces the use of pesticides.
6. Step 6. Pesticide — uses — Aerosol can. In 1941 insecticide began to be sprayed from aerosol cans, the "bug bombs" made for soldiers; after the war the same can was used for hair spray.

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