Question

Abdelhamid,
a.M., gawish, m.M., soryal, k.A. 2006. Comparative study between desert cultivated and natural fisheries of mullet fish in egypt. Ii- microbiological concern. J. Agric. Scie., mansoura univ., 31: 5681 5687.

Answer 1

Answer:

Fish had long been regarded as a nutritious and highly desirable food due to their contribution of high quality animal protein, richness in calcium and phosphorus and generous supply of vitamins. Heavy metals in soil and water may enter the food chain through the biological cycle, which includes bio-concentration by plants and animals. The presence of such metals at significant concentrations in the environment is considered a potential health hazard to humans and animals.

The pollution of the aquatic environment with heavy metals has become a serious health concern during recent years. Untreated municipal and industrial wastes, are the major sources of metal pollution, especially in areas in close vicinity to industrial and agricultural activities

Answer 2

$\huge\bold\red{HOLA!!}$

Karl Marx's theory of alienation describes the estrangement (Entfremdung) of people from aspects of their Gattungswesen ("species-essence") as a consequence of living in a society of stratified social classes..................