Agricultural technology: modern devices used in agriculture such as tractors, hybrid seeds, fertilizers, and pesticides.

Biological control: controlling pests with the use of one or more living things; for example, some farmers use spiders in their crops because they eat insects.

Biopesticides: pesticides found in nature, such as bacteria or chemicals produced naturally by plants; if these pesticides are synthesized, they are copies of a natural substance.

Bt: Bacillus thuringiensis, a bacterium (microscopic organism) that kills insects; used in agriculture to control pests biologically.

Cancer: a disease that occurs when cell growth is uncontrolled.

Carcinogen: chemical, physical, or biological agent that can cause cancer.

Chloroquine: a medicine used to prevent and treat malaria.

Cultivation control: limiting pests through physical action such as picking insects off plants by hand.

Epidemiology: a scientific discipline that attempts to identify the causes of disease in a population.

Fungicides: chemicals used to kill...