5 issues and impact - environmental issues Flashcards
1
Q
what is the life cycle of a computer?
A
- Mining raw materials
- Manufacture
- Purchase and use
- Recycling centre and Reprocessing plant
- or disposal
2
Q
explain two environmental issues with the purchase of a new computer
A
- more gas and coal is used to power the producting factories
- mining raw materials leads to contamination and erosion
3
Q
state five harmful materials in computers
A
- Dioxins
- Chromium
- Mercury
- Cadmium
- Radioactive isotopes
4
Q
Suggest why disposing computing technology to countries with lower standards is bad
A
- people trawl through waste looking for metals to be recycled and sold
- exposing themself to danger
5
Q
what is meant by planned obsolescence
A
when manufacturers design products to fail after a certain period of time
6
Q
explain two ways companies can perform planned obsolescence
A
- Having inferior materials in stress bearing components in the product
- Programmed software to make it fail
7
Q
true or false: electrical devices don’t use energy
A
false
8
Q
true or false: electrical devices use energy
A
true
9
Q
how can you minimize the energy used in smartphones (3)
A
- using power mode
- turning off bluetooth
- install latest updates
10
Q
how can you minimize the energy used in computers (2)
A
- suspend computers at the end of the day
- stop hard disks from spinning if they havent been used for a while
11
Q
name three ways we can reduce computers negative impact on the planet
A
- Make devices that can be fixed with modular components
- Use removable batteries
- Use modern recycling facilities
