There could be a lot of reasons. To help break down food for the plants, kill off bad and harmful things that might damage the plant.
Answer:
i think oh is a radicalin these option.
D. seems the most probable since plastic is barely biodegradable.
The are six essential nutrients that are needed for the human body. n essential nutrient is a nutrient that the body cannot synthesize on its own. These nutrients are carbohydrates, protein, fat, vitamins, minerals and water. Hope this answers the question.
