Tell me, which of the chemicals are th most poisonous among the others? :
a. fertilizers
b. insecticides
c. pesticides
d. all of the above

C. pesticides

Pesticides are substances that prevent, repel and destroy pests. Some pesticides are made with ammonia, arsenic, benzene, chlorine, ethylene oxide, dioxins, methanol, and formaldehyde. 

Ammonia and arsenic are both highly toxic poisons while methanol and benzene are found in paint strippers and removers. Chlorine is used in water purification as a bacteria and micro-organisms killer. 

Some pesticides are carcinogens, which are known to cause cancer if you are exposed to the carcinogens. Other health problems that can occur due to exposure are;

1. Birth defects
2. Nerve Damage
3. Hormone and endocrine system damage.

They might be white heads, basically pimples but you should ask your parents to check them out before it’s something bad.