Question

Write the main sources and the diseases caused by the deficiency of vitamins A and C.

Hint:

Vitamins are essential for metabolism; deficiencies cause specific diseases.

Answer 1

Step 1: Vitamin A:
- Sources: Carrots, milk, fish liver oil
- Deficiency Disease: Night blindness 

Step 2: Vitamin C:
- Sources: Citrus fruits, green vegetables
- Deficiency Disease: Scurvy (bleeding gums, weakness)