A. A trade Union is for a specific trades (like firefighters, police). Industrial general union is for companies that make things like vehicles. Both protect the employees.
B. A grievance procedure is when an employee is done wrong within the company. For example, in a factory they may go by senority (how long somebody works there). Suppose they forced a person to work that had more time in over somebody who has less time in. A grievance would be filed. A disciplinary procedure would include being late to work, crashing a forklift, etc.
C. If a grievance isn’t dealt with early, the company could loose money, employees, etc.
the author should state ways that Americans can use less oil like using alternative energy like wind and solar and driving cars that do not run on gasoline but alternative fuels like hydrogen.