floppy drives
hard drives
power supplies
CRTs E. system boards
Answer is Right!
Answer is Wrong!
The correct answer is D, CRTs. CRTs contain a large amount of lead, which is a toxic heavy metal. When CRTs are disposed of in landfills, the lead can leach into the soil and water, contaminating the environment. In addition, CRTs are difficult to recycle because of the lead they contain.
Floppy drives, hard drives, power supplies, and system boards do not contain lead and are therefore easier to dispose of environmentally. However, they can still contain other harmful materials, such as mercury and cadmium. It is important to recycle these items properly to avoid contaminating the environment.
Here is a more detailed explanation of each option:
- Floppy drives are small, portable devices that were once used to store data. They are no longer widely used, but they may still be found in some older computers. Floppy drives contain a small amount of lead, but this is not enough to cause significant environmental harm if they are disposed of properly.
- Hard drives are larger and more complex than floppy drives. They are used to store large amounts of data, and they are found in most modern computers. Hard drives contain a small amount of lead, but this is not enough to cause significant environmental harm if they are disposed of properly.
- Power supplies are used to convert AC power from the wall outlet to DC power that can be used by the computer. They contain a small amount of lead, but this is not enough to cause significant environmental harm if they are disposed of properly.
- CRTs are large, heavy devices that were once used as the main display in most computers. They contain a large amount of lead, which is a toxic heavy metal. When CRTs are disposed of in landfills, the lead can leach into the soil and water, contaminating the environment. In addition, CRTs are difficult to recycle because of the lead they contain.
- System boards are the main circuit boards in a computer. They contain a variety of components, including processors, memory, and storage devices. System boards do not contain lead, but they can still contain other harmful materials, such as mercury and cadmium. It is important to recycle these items properly to avoid contaminating the environment.