The fundamental cause of `DeltaT` (depression is):

"Poaching is one of the fundamental causes of endangeredness of animal diversity in India"-Assess four causes for which animals are poached in India.

The fundamental cause of the sickle-cell disease is a change in the structure of :

The fundamental cause of the sickle-cell disease is a change in the structure of :

Low level of noradrenaline is the cause of depression. What type of drugs are needed to cure this problem ? Name two drugs.