Which of the following statements are correct?
1. Principle of adequacy of wages state that workers have right to fair wages.
2. Education and training, housing, and food are the three most important aspects of labour welfare.
3. The organisation needs to take care that all the labour welfare measures are uniformly accepted across all the levels of hierarchy.
4. It is the duty of industry to fulfill the unmet needs of the workers and it isthe right of workers to decide the manner in which these needs can be met.