Final Exam

Question 1

What are the advantages and disadvantages of hazardous chemicals?

Answer 1

They are essential for modern society. We can’t live without them. They help feed us cheaply.
They can cause cancer and birth defects.

Question 2

What is an aromatic compound?

Answer 2

Molecule that contains a benzene ring.

Question 3

What is a hydrocarbon?

Answer 3

Organic compound containing only hydrogen and carbon

Question 4

What are organic compounds?

Answer 4

Naturally occurring substances that contain mainly Carbon, hydrogen, nitrogen, and oxygen

Question 5

What are persistent organic compounds?

Answer 5

Toxic organic compounds that negatively impact human health hand the environment. They can be transported by wind and water

Question 6

What are polycyclic aromatic hydrocarbons?

Answer 6

100 different chemicals that are formed during incomplete burning of coal, oil, and gas, garbage, or other organic compounds

Question 7

What are volatile organic compounds?

Answer 7

Organic compounds that readily evaporate into the air

Question 8

What is a pesticide?

Answer 8

Substance intended to repel, kill, or control any species designated a pest

Question 9

What is a insecticide?

Answer 9

Used to kill or prevent the growth of insects

Question 10

What is herbicide

Answer 10

Designed to control or will plants, weeds, and grasses

Question 11

What is fungicide?

Answer 11

Used to control fungi

Question 12

What is a nematocide?

Answer 12

Used to kill nematodes

Question 13

What is a rodenticide?

Answer 13

Used to kill rats and other rodents to prevent them from damaging food, crops, or forage

Question 14

What is a fumigant?

Answer 14

Pesticide is vaporized is will rests

Question 15

What is agent orange?

Answer 15

Defoliant herbicide that was used during the Vietnam war

Approxamently 19 million gallons were sprayed

Question 16

What are the effects of pesticide exposure?

Answer 16

Exposure can cause cancer and birth defects as well as other health effects
It can also cause CCD in honey bees and harm native insects

Question 17

What are dioxins?

Answer 17

They are a family of chemicals that are produced as industry by-products and natural processes involving combustion.
Effects range from skin issues to cancer and reproductive impacts

Question 18

What are hee impacts of PCBs

Answer 18

They cause cancer, impact the immune system, cause reproductive harm, and may impact intellectual development

Question 19

What are organic solvents and their impacts?

Answer 19

Organic liquid that can dissolve another substance
Toluene, acetone, benzene
They can cause headaches, dizziness, damage to blood and blood forming organs, and cancer

Question 20

What is the difference between ionizing and nonionizing radiation?

Answer 20

Ionizing radiation has the potential to knock electrons out of atoms
Nonionizing radiation has enough energy to move atoms in a molecule but can’t remove elections

Question 21

What are the types of ionizing radiation?

Answer 21

Alpha particles, beta particles, gamma rays, and X-rays

Question 22

What are the health impacts of radiation?

Answer 22

Changes in blood chemistry, nausea, fatigue, vomiting, hair loss, diarrhea, hemorrhage, destruction of intestinal lining, internal bleeding, damage to CNS, loss of consciousness, death

Question 23

What are sources of radiation?

Answer 23

Uranium, radon, extraterrestrial

Question 24

What is uv radiation and its impacts?

Answer 24

Form of nonionizing radiation in the optical Range
Skin reddening, inflammation, Pain, swelling, tanning, photosensitivation, phototoxicity, photoallergic reactions
0-2: low, 3-5: moderate, 6-7: high, 8- 10: very high, ll+ extreme
Its a risk factor for ocular melanoma

Question 25

What is water supply?

Answer 25

Surface water: surface water from rivers and lakes
Aquifer: freshwater stored underground
Finished water: deliver to distribution system after treatment
Source water: untreated drinking water
Ground water: water that is below ground

Question 26

What are freshwater resources?

Answer 26

68.9% in glaciers or permanent snow cover
30.8% in ground water
0.3% in lakes and rivers

Question 27

How is water treated?

Answer 27

Coagulation, sedimentation, filtration, and disinfection

Question 28

What are waterborne diseases?

Answer 28

Conditions that are transmitted through injesting contaminated water

Question 29

What is cryptosporidiosis?

Answer 29

It is an infections agent that is caused by a protozoan organism
It causes watery diarrhea, abdominal cramping, nausea, vomiting, and fever

Question 30

What is guinea worm?

Answer 30

Larvae enters the water supply and enter humans through small cuts
They then grow and emerge from humans legs and feet

Question 31

What is smog complex?

Answer 31

Eye irritation, irritation of the respiratory tract, crust pains, cough, shortness of breath, nausea, and headache