Answer:
To increase yields, farmers use toxic pesticides to kill pests that ruin crops. However, some of these toxic chemicals __Remains_th the food we eat, and also end up in our _Body__ . The use of pesticides over time has caused pests to evolve and become resistant to the chemicals, causing farmers to apply _Greater__ quantities on their crops, which _increase__ the environmental side-effects.
Step-by-step explanation:
An ideal pesticide would kill the pests without producing any side effect but unfortunately most of the pesticides have side effects. The pests residues remains in the crops and consumed by human producing certain side effects in the body. Certain organizations such as World Health Organization and Food and Agriculture Organization have set the limits for these pesticides residues for human safety.
The critical point in using pesticides is that pests become resistant to the pesticides and we have to use greater and greater quantities each time for killing those pests which would produce increases environmental side effects.