Question

what is one of the primary benefits of recycling aluminum cans? it increases the weight of the waste stream. it decreases energy efficiency in production. it creates more greenhouse gas emissions. it reduces the need for raw material extraction.

Explanation:

To determine the primary benefit of recycling aluminum cans, we analyze each option:

• "It increases the weight of the waste stream" is incorrect because recycling reduces waste, not increase its weight.
• "It decreases energy efficiency in production" is wrong as recycling aluminum uses far less energy than producing new aluminum from raw materials, so it increases energy efficiency.
• "It creates more greenhouse gas emissions" is incorrect; recycling aluminum reduces greenhouse gas emissions compared to producing new aluminum.
• "It reduces the need for raw material extraction" is correct. Recycling aluminum means we can reuse the existing aluminum, so we don't need to extract as much bauxite (the raw material for aluminum) from the earth.

Answer:

D. It reduces the need for raw material extraction.