Environmental helath

Viruses, bacteria, and other organisms in the environment that harm human health are classified as 

• biological hazards 
• social hazards
• chemical hazards
• physical hazards

Toxicology deals primarily with what types of hazards? 

• biological and social 
• both chemical and physical 
• Option 3  human-made 
• natural disasters

Which of the following types of people generally has a greater sensitivity to environmental hazards than the other types of people?

• teenagers
• adults
• infants
• none; all have equal sensitivity 

The process of measuring the chance that an environmental hazard will cause harm is called 

• toxicology
• epidemiology
• dose-response relationship 
• risk assessment

Infectious diseases are diseases caused by an organism such as a virus or a bacterium, which is called a

• pathogen
• toxicant
• pandemic
• carcinogen

A disease that has appeared in the human population for the first time or that has existed for a while, but is increasing rapidly or spreading around the world is called

• environmental

• pandemic

• emerging

• infection

Which of the following is an example of a social hazard that cannot easily be controlled? 

• smoking cigarettes 
• pollution from a factory near your school 
• lack of exercise 
• a high-fat diet 

Chemicals that cause cancer are called 

• carcinogens
• hazards
• teratogens
• neurotoxins

Toxicology is the study of how disease affects organisms’ health 

• True
• False

What are some examples of social hazards?

• Smoking
• Drugs
• Overeating
• All of the above