Tag: health and its maintenance

• The yellows disease of tea, the nature of which has hitherto remained obscure, has caused serious losses to planters in Nyasaland. It is characterized by a progressive degeneration of the bush, in which the leaves become chlorotic, small, uprolled and of stiff texture, and are finally shed.It is caused due to the deficiency of Nitrogen. 

Diarrhoeal diseases are a group of intestinal infections, including food poisoning. The causative agents are mainly bacteria such as Staphylococus, Clostridium, Escherichia coli, Shigella, Salmonella etc.

Cytokinins delay the senescence of leaves and other organs by controlling protein synthesis and mobilization. Reported by "Richmond and Lang" in 1957 working on "Xanthium leaves".

An opiate is a narcotic analgesic, that directly depresses the central nervous system. These opiates are prescribed for their analgesic or pain-relieving properties. Morphine, codeine and related drugs fall within this class and are sometimes referred to as narcotics.
Thus, the correct answer is option (C), 'Codeine and Morphine'.

Drug abuse is a term used commonly when prescription medication with sedative, analgesic, or stimulant properties are used for mood alteration or intoxication ignoring the fact that overdose of such medicines have serious adverse effects.