BIOLOGY
Where Does Our Food Come From
Q1: Define
Herbicides
A herbicide is a pesticide used to kill unwanted
plants. Selective herbicides kill certain targets
while leaving the desired crop relatively unharmed.
Fungicides
a chemical that destroys fungus.
Insecticides
Insecticides are pesticides that are formulated to
kill, harm or repel one or more species of insect.
Q2: Why DDT is consider as bad insecticides?
DDT was canceled because it persists in the
environment, accumulates in fatty tissues, and can
cause adverse health effects on wildlife.
Where Does Our Food Come From
Q1: Define
Herbicides
A herbicide is a pesticide used to kill unwanted
plants. Selective herbicides kill certain targets
while leaving the desired crop relatively unharmed.
Fungicides
a chemical that destroys fungus.
Insecticides
Insecticides are pesticides that are formulated to
kill, harm or repel one or more species of insect.
Q2: Why DDT is consider as bad insecticides?
DDT was canceled because it persists in the
environment, accumulates in fatty tissues, and can
cause adverse health effects on wildlife.
