Which is not caused by human interactions with the earth system?

a. deforestation
b. air pollution
c. mountain building
d. water pollution

Awic dietitian is meeting with a client who has an infant and a young child. the mother says that the young child is a very picky eater and will only eat crackers and juice. the health worker notices that the child's hair is brittle, his nails tear easily, and the skin inside his lower eyelids is very pale. these are all signs of iron deficiency.

Name the organs of humanelemintary canal.

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?