which of the following could explain why wages for certain trades such as welding and plumbing have increased over the last 10 years

- A growing demand for skilled workers in these trades due to an aging workforce and increasing construction projects

- A decrease in the number of individuals entering these trades, resulting in a shortage of skilled workers
- Changes in government regulations or industry standards that require higher levels of training and certification for workers in these trades
- Advancements in technology that require more specialized skills and training for workers in these trades
- Rising costs of living and inflation, leading to higher wage expectations for workers in these trades.