The majority of b-vitamin deficiencies in today's world can be associated with

The majority of B-vitamin deficiencies in today's world can be associated with consuming alcohol and cooking  

Explanation:

Vitamin B is most essential to be consumed for the metabolic processes and they are very delicate. Over cooking easily takes away the Vitamin-B from the food. Alcohol when consumed takes away all the vitamin-B from the kidney.

Hence majority of B-vitamin deficiency is caused by consuming alcohol and over cooking. It is important to have a food that is rich in vitamins and normally Vitamin-B is used for cell health and keep our body energetic.

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

rain is the best answer