Company A was a refinery and managed petroleum products. Another company, named company H, produced and distributed electricity using wind power. Both companies strive to be more efficient and to pollute less. Which company made more fuel for trains?
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Answer: Company A

Mike grew tomatoes on his parcel of land and so did John. Mike's attempt was very successful, because he adjusted the soil's pH to a viable level for growing vegetables, and John didn't. Both parcels had soils with lots of sodium carbonate in them. John's experiment failed. Which soil had less favorable physico-chemical properties?
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Answer: John's

Croatia and Italy were two countries of similar size and population located on opposite shores of the same sea. Croatia based its economy on tourism and fishing, while Italy based its economy on conventional agriculture. Both countries had thriving economies, but they both polluted the sea in different ways. Which country used fewer fertilizer chemicals?
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Answer:
Croatia