Answer: 1. A. Glass, metal, insects, and dirt
The glass, metal, insects, and dirt can be added to the food which is placed in a vessel which is not cleaned properly with a cleaning agents. These are natural contaminants the probability of which is more possible in the food as compared to the other options.
2. B. Toxoplasma gondii
Toxoplasma gondii is a microscopic parasitic organism which causes disease named as toxoplasmosis. This organism spread by the feces of cats, eating uncooked meat, can be transmitted from the mother to infant during pregnancy. The symptoms of the disease includes fever, muscular pain and weakening of the immune system.
