Hazardous substances are dangerous substances while toxins are poisonous substances. Hazardous substances may cause harm to an individuals health; they include acute toxins such as cyanide; substances harmful after repeated or prolonged exposure such as mercury and silica, among others. Toxic substances can be poisonous or cause health effects.
Using Natural predators to reduce insect numbers caused the least harm to the environment.
Answer:
The answer is D.) igneous or metamorphic.
Explanation:
