1. Social-scientific issues
- Use of non-renewable energy
- Use of fossil fuels that emit greenhouse gases
2. Examples of several socio-scientific issues that are related to the environment:
- Deforestation
- Global warming
- Air polution
- Indiscriminate waste disposal
- Water pollution
3. Socio-scientific issues of burning of fossil fuels produce greenhouse gases that cause global warming and extreme climate changes.
4. Source of energy
- Non-renewable energy
- Examples: fossil fuels (petroleum, natural gas, coal), nuclear energy
- Disadvantages:
- supply become scarce
- environmental pollution (carbon monoxide & carbon dioxide)
- Renewable energy
- Examples: Hydro, solar, wind, geothermal, wave
- Advantages:
- clean energy
- green energy
- pollution free
5. Application of green technology
- Wind energy source replace fossil fuel in the future.
- Hydro energy source become one of the main energy sources in the world to generate electricity.
- Solar energy source has potential to be developed in Malaysia.
- Geothermal energy source replace fossil fuel.
|