Match the description in column 1 with the agriculture term in column 2. column 1. chemicals used to kill insects, cutting fields into hillsides, growing the most efficient variety of plants for an area, chemicals used to increase crop growth.
column 2. pesticides, fertilizers, monoculture, terracing.

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first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

dude you should crop your image so only the question shows. but   can you explain it better