A reason could be the bodies ability to process the water based vitamin as well as the person's diet. many things have b12 in it but choosing to cut something out, like meat, could cause a deficiency
Answer:
1. group A
2. Productivity of workers
3. Special juice drink consumption
4. Group B
5. Refuted
Explanation: sorry if am not correct
Factories, cars and cigoretes.
All of these things are polluting the air cuasing it to heat up more which is cuasing global warming
