DENDROLOGY

Detailed explanation-1: -Sunlight provides energy to the plant while water and carbon dioxide provide all the important nutrients required by the plant for food preparation. Oil is not required by the plant in food prepration.

Detailed explanation-2: -Impact on environment In addition to killing insects or weeds, pesticides can be toxic to a host of other organisms including birds, fish, beneficial insects, and non-target plants. Insecticides are generally the most acutely toxic class of pesticides, but herbicides can also pose risks to non-target organisms.