It is kind of a tie between iron and vitamin A. It depends on which literature you get the information from.
nitrogen
Iron-deficiency Anemia
Calcium
The baobob is the most common.
Green Plants.
if you mean house plants , then the quickest and most often is by over watering
Iron-deficiency Anemia
Iron deficiency is the most common nutrient deficiency worldwide, affecting about a quarter of the global population. Iron is essential for producing hemoglobin, which carries oxygen in red blood cells. Deficiency can lead to anemia and other health complications.
Nutrient deficiency is the deficiency of a nutrient over a long perod of time.It can result in various diseases which can be overcomed by eating a balanced diet.The nutrient deficiency is not cured by eating a lot of food but by ating variety of food .We should help poor get food as they have the most deficiency.The deficiencys are:-Vit.A-Night BlindnessVit B ;-Beri BeriVit C:-ScurvyVit D:- RicketsVit E:-Skin diseaseIron:-AnaemiaCarbohydrate :-MarasmusProtein:-Kwashiorkar
the most common cause of thiamine deficiency is alcoholism. Other conditions which cause thiamine deficiency occur quite rarely, but can be seen in patients undergoing dialysis
Most vitamin are produced by plants
Calcium
The most common cause of anemia in adults is iron deficiency.
Iron deficiency anemia
plants in the desert don't get enough rain
Well the reason why it's hard to classify carnivorous is becauseCarnivorous plants have the most bizarre adaptations to low-nutrient environments. These plants obtain some nutrients by trapping and digesting various invertebrates, and occasionally even small frogs and mammals. Because insects are one of the most common prey items for most carnivorous plants, they are sometimes called insectivorous plants. It is not surprising that the most common habitat for these plants is in bogs and fens, where nutrient concentrations are low but water and sunshine seasonally abundant. As many as thirteen species of carnivorous plants have been found in asinglebog (Folkerts, 1982). Most plants absorb nitrogen from the soil through their roots. But carnivorous plants absorb nitrogen from their animal prey through their leaves specially modified as traps.
selective immunoglobulin A deficiency disease.
A deficiency is a lack or shortage, therefore deficiency diseases are caused by a lack or shortage of necessary nutrients in the body. One example is scurvy, a disease associated with pirates that occurs when an individual suffers from a vitamin C deficiency.