- The statement "Coal is a kind of fossil fuel " is irrelevant

- Replacing something decreases that something
- Advances in technology sometimes cause human jobs to be replaced by more efficient machines
- Therefore, advances in technology decrease human jobs by replacing them with efficient machines

- Advances in technology decrease human jobs by replacing them with efficient machines
- Having a job has a positive impact on a human
- Decreasing something positive has a negative impact on a thing
- Therefore, advances in technology decreasing human jobs by more efficient machines has a negative impact on human

Hence, advances in technology decreasing human jobs by more efficient machines has a negative impact on human
Modern technology has had some positive and negative effects on society. Which would be a negative effect of advances in technology?
- Replacing something decreases that something 
- Coal is a kind of fossil fuel 
- Having a job has a positive impact on a human 
- Advances in technology sometimes cause human jobs to be replaced by more efficient machines 
- Decreasing something positive has a negative impact on a thing