Unit 10 & 11 DIA Review

Unit 10 Waste Management & Unit 11 Toxicology & Epidemiology Review

Unit 10 Waste Management

Waste Reduction - the 3 R's

Reducing - buying only what you need

Reusing - reusing containers for another purpose

Recycling - recycling plastics, glass, paper

Waste Management

​Landfills

• Pros:

  • Common - 50% of MSW waste is disposed in landfills

  • Methane produced from decomposition can be used for energy

• Cons:

  • Expensive to build

  • NIMBY

  • Possible contamination from leachate

Waste Management

​Incineration (burning of trash)

• Pros

  • Reduces volume of trash going to landfill

  • Used to generate electricity

• Cons

  • Produces toxic ash

  • Releases pollutants in the air

Waste Management

​Deep Well Injection - Wastes injected into deep, confined porous rock layers

• Pros

  • Fast, efficient disposal

  • Decreased risk of pollution entering the environment

• Cons

  • Long term monitoring needed

  • Waste can leak into groundwater

Multiple Select

Which of the following are ways that we can reduce waste when buying products at the store? (choose 2)

• Buy products with more plastic packaging

• Buy products with biodegradable packaging

• Buy products with reusable packaging

• Buy products that have single use packaging

Multiple Choice

Which of the following is the best method to reduce food waste from going to a landfill?

• Incineration

• Composting

• Recycling

• Going on a strict diet

Open Ended

When thinking about waste reduction, why is a 2 liter bottle of soda a better option to buy instead of a 6 pack of canned soda?

Multiple Select

Biodegradable plastics can be broken down into smaller pieces by sunlight or by bacteria in the soil. They take less time to decompose, they can be recycled, and they are made out of renewable materials like corn. Two disadvantages about biodegradable plastics is that...(choose 2)

• They can be composted.

• They never really disappear completely from the environment.

• When they break down, they create microplastics in the ocean.

• They are made from fossil fuels.

Multiple Choice

Nuclear waste from a nuclear power plant is classified as...

• Radioactive waste

• Toxic waste

• Ignitable waste

• Corrosive waste

Multiple Choice

Which of the following is not a classification of hazardous waste?

• Ignitable

• Corrosive

• Toxic

• Repetitive

Multiple Select

The Resource Conservation and Recovery Act (RCRA) is a federal law that regulates which of the following? (choose 3)

• The tracking of hazardous material from creation to disposal

• Protection of human health through proper waste disposal

• Reduction of waste by recycling

• The cost and type of products that consumers buy

Multiple Choice

Which of the following is a serious health effect from exposure to radioactive waste?

• Skin burns

• Cancer

• Nausea

• None, radioactive waste is safe for humans

Multiple Choice

Which of the following is a human health issue caused by air pollution?

• Asthma

• Skin cancer

• Radiation burns

• Bacterial infection

Multiple Choice

Point source pollution is pollution that you can identify the source of, such as a smokestack or a discharge pipe.

• True

• False

Multiple Choice

Nonpoint source pollution is pollution that is hard to identify the source of because it comes from many different sources, like fertilizer runoff from a neighborhood, or acid rain in a region with a lot of manufacturing companies.

• True

• False

Field of science that studies the patterns and causes of diseases in a population.

​Epidemiology

Field of science that studies the harmful effects that chemicals and substances can have on people, animals, and the environment.

​Toxicology

Unit 11 Toxicology & Epidemiology

Multiple Choice

Which of the following studies would a toxicologist conduct?

• The spread of mosquito-borne viruses due to climate change

• The effects of persistent organic pollutants in a marine food web

• The effects of sound on the growth of plants

• The spread of fungus in warm vs. cold climates

Multiple Choice

Which of the following studies would a epidemiologist conduct?

• The spread of mosquito-borne viruses due to climate change

• The effects of POPs in a marine food web

• The effects of sound on the growth of plants

• The amounts of water different types of soil can hold

Multiple Select

Human health can be impacted by...(choose 3)

• Genes inherited by parents

• Environment and lifestyle choices

• Personality traits

• Exposure to pathogens like bacteria, viruses, fungi, and parasites

Multiple Choice

Bioaccumulation is...

• The build up of toxins and other chemicals in soil and water

• The build up of toxins and other chemicals in the fatty tissues of organisms over time

• The accumulation of decomposing material on the bottom of the ocean floor

• The accumulation of biological mass as an organism eats

Multiple Choice

Biomagnification is...

• The magnification of organisms using powerful microscopes

• The increase in size of organisms higher up the food web

• The increase of bioaccumulated chemicals in tissues of organisms higher up the food web

• The increase in the number of organisms at lower levels on a food web