Weed killers contain chemicals to control weeds. A chemical called glyphosate kills weeds by preventing protein essential to plant growth. Weed killers mainly contain glyphosate which is believed to stop plants from producing certain molecules called amino acids. Plants make amino acids from scratch in order to live. On the other hand, people and some animals receive these amino acids from eating plants because they do not have the ability to make amino acids for they lack enzymes that are needed for their synthesis. It was introduced in 1974 by Monsanto Technology commercially with the brand name “Roundup Ready.” Glyphosate is toxic to nearly all plants, not just weed. To make glyphosate effective without destroying the crops then you need
