Terrestrial Pollution REDemption

Last updated 12 months ago

5 questions

1

Which of the following identifies an unintended result from recycling programs?

Recycling plastic wrappers from food allows for increased compost material.

When materials are recycled, it reduces the need for extracting and processing raw materials.

Recycling is a cost-effective and low-energy process that turns waste into usable goods.

When items are placed in recycling that cannot be recycled, the cost of recycling increases.

A sanitary landfill with a surface area of 6000 m2 receives a yearly rainfall amount of 300 mm. About 20 percent of this precipitation is runoff and does not infiltrate the surface. A leachate collection system, which is installed underneath the landfill, is 90 percent effective at collecting and treating any water that infiltrates the surface of the landfill.

Assuming consistent yearly rainfall amounts, what is the volume of leachate, in m3, that the landfill will be able to treat per year?

1,800 m3

1,296 m3

360 m3

324 m3

Of the following, which is the primary method of waste disposal in the United States?

Incineration

Recycling

Landfilling

Composting

Which of the following is the greatest component (by weight) of municipal solid waste in the United States?

Yard waste

Glass

Paper

Plastics

Which of the following best explains why more contaminants are leached when solid waste is crushed into small particles and put in contact with water than when the particles are large?

Larger particles have greater density per unit weight.

Water penetrates larger particles more easily than smaller particles.

Internal pressure is greater in smaller particles than in larger particles.

Smaller particles have a larger surface area per unit volume than larger particles.

Which of the following identifies an unintended result from recycling programs?

Recycling plastic wrappers from food allows for increased compost material.

When materials are recycled, it reduces the need for extracting and processing raw materials.

Recycling is a cost-effective and low-energy process that turns waste into usable goods.

When items are placed in recycling that cannot be recycled, the cost of recycling increases.

A sanitary landfill with a surface area of 6000 m2 receives a yearly rainfall amount of 300 mm. About 20 percent of this precipitation is runoff and does not infiltrate the surface. A leachate collection system, which is installed underneath the landfill, is 90 percent effective at collecting and treating any water that infiltrates the surface of the landfill.

Assuming consistent yearly rainfall amounts, what is the volume of leachate, in m3, that the landfill will be able to treat per year?

1,800 m3

1,296 m3

360 m3

324 m3

Of the following, which is the primary method of waste disposal in the United States?

Incineration

Recycling

Landfilling

Composting

Which of the following is the greatest component (by weight) of municipal solid waste in the United States?

Yard waste

Glass

Paper

Plastics

Which of the following best explains why more contaminants are leached when solid waste is crushed into small particles and put in contact with water than when the particles are large?

Larger particles have greater density per unit weight.

Water penetrates larger particles more easily than smaller particles.

Internal pressure is greater in smaller particles than in larger particles.

Smaller particles have a larger surface area per unit volume than larger particles.