Exploring Adding and Subtracting Rational Expressions

What are the three general categories of environmental hazards?

• Biological, Chemical, Physical

• Infectious, Toxic, Mechanical

• Natural, Artificial, Constructed

• Organic, Inorganic, Composite

Which vector is commonly associated with the transmission of diseases like malaria?

• Flies

• Mosquitoes

• Fleas

• Rats

What type of chemical hazard are POPs classified as?

• Persistent Organic Pollutants

• Carcinogens

• Neurotoxins

• Teratogens

Which heavy metal is known to be a neurotoxin?

• Zinc

• Iron

• Copper

• Lead

Which is a concern for pregnant women among chemical hazards?

• Carcinogens

• Neurotoxins

• Teratogens

• Allergens

What is the primary concern of physical hazards?

• Chemical exposure

• Accidents and natural disasters

• Genetic mutations

• Disease spread

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS3-2

What is the difference between bioaccumulation and biomagnification?

• Biomagnification occurs within an individual, bioaccumulation across a food chain

• Bioaccumulation occurs within an individual, biomagnification across a food chain

• No difference, terms are interchangeable

• Both terms describe chemical stability

Tags

NGSS.HS-LS4-5

What does the Stockholm Convention regulate?

• Air pollution levels

• Water pollution levels

• Persistent organic pollutants

• Wildlife conservation efforts

What is the purpose of the Delaney Clause?

• To prevent air pollution

• To control water pollution

• To ban cancer-causing agents in food

• To regulate the use of pesticides

What does LD50 represent?

• None of the above

• Dose safe for 50% of a population

• Lethal dose for 50% of a population

• Dose causing symptoms in 50% of a population