Which of the following is an advantage of synthetic chemical pesticides?

little harm to the environment

made of natural substances

save human lives

only kill the target pests

saves Humans LIVES

The correct answer is: save human lives

The primary benefits are the consequences of the pesticides' effects - the direct gains expected from their use. The effect of killing caterpillars feeding on the crop brings the primary benefit of higher yields and better quality of cabbage. The three main effects result in 26 primary benefits ranging from protection of recreational turf to saved human lives.