mod 3

Question 1

any unwanted or discarded material we produce that is not a liquid or a gas.

Answer 1

SOLID WASTE

Question 2

produced by mines, agriculture, and industries that supply people with goods and services.

Answer 2

INDUSTRIAL SOLID WASTE

Question 3

often called garbage or trash, which consists of the combined solid waste produced by homes and workplaces.

Answer 3

Municipal solid waste (MSW)

Question 4

which threatens human health or the environment because it is poisonous, dangerously chemically reactive, corrosive, or flammable.

Answer 4

HAZARDOUS OR TOXIC WASTE

Question 5

How Should We Deal with Solid Waste?

Answer 5

• We Can Burn or Bury Solid Waste or Produce Less of It waste management
• waste reduction
• integrated waste management

Question 6

consume less and live a simpler lifestyle.

Answer 6

REDUCE

Question 7

rely more on items that can be used repeatedly instead of on throwaway items.

Answer 7

REUSE

Question 8

separate and recycle paper, glass, cans, plastics, metal, and other items, and buy products made from recycled materials.

Answer 8

RECYCLE

Question 9

are essentially fields or holes in the ground where garbage is deposited and sometimes burned. They are rare in developed countries but are widely used near major cities in many developing countries.

Answer 9

OPEN DUMPS

Question 10

solid wastes are spread out in thin layers, compacted, and covered daily with a fresh layer of clay or plastic foam, which helps to keep the material dry and reduces leakage of contaminated water (leachate) from the landfill.

Answer 10

SANITARY LANDFILLS

Question 11

for detoxifying hazardous wastes include using charcoal or resins to filter out harmful solids and distilling liquid mixtures to separate out harmful chemicals.
Especially deadly wastes can be encapsulated in glass, cement, or ceramics and then put in secure storage sites.

Answer 11

PHYSICAL METHODS

Question 12

are used to convert hazardous chemicals to harmless or less harmful chemicals through chemical reactions.

Answer 12

CHEMICAL METHODS

Question 13

for treatment of hazardous waste to be the wave of the future.

Answer 13

BIOLOGICAL METHODS

Question 14

One such approach is _____, in which bacteria and enzymes help to destroy toxic or hazardous substances or convert them to harmless compounds.

Answer 14

BIOREMEDIATION

Question 15

which involves using natural or genetically engineered plants to absorb, filter, and remove contaminants from polluted soil and water

Answer 15

PHYTOREMEDIATION

Question 16

Hazardous wastes can be ______ to break the down and convert them to harmless or less harmful chemicals such as carbon dioxide and water.
This has the same mixture of advantages and disadvantages as burning solid wastes.

Answer 16

INCINERATED

Question 17

The most common form of burial is _____, in which liquid hazardous wastes are pumped through a pipe into dry, porous rock formations far beneath aquifers, many of which are tapped for drinking and irrigation water.

Answer 17

DEEP-WELL DISPOSAL

Question 18

are ponds, pits, or lagoons into which liners are placed and liquid hazardous wastes are stored.

Answer 18

SURFACE IMPOUNDMENTS

Question 19

is an ideal whereby every person is entitled to protection from environmental hazards regardless of race, gender, age, national origin, income, social class, or any political factor.

Answer 19

ENVIRONMENTAL JUSTICE

Question 19

this is the gas that garbage produces.

Answer 19

METHANE