#Eutrophication

(a) Deficiency of vitamins causes different human diseases. Choose the correct type of vitamin (Vit. A, Vit. B1, Vit. C, Vit. D, Vit. E, Vit. K) for each disease: 1. Poor night vision 2. Bleeding gums 3. Rickets in children 4. Beri-Beri 5. Anaemia. (b) People suffering from cardiovascular disease having high level of cholesterol in their blood, this often leads to build of fats on its internal arterial walls, suggest how this might be harmful to the heart. (c) Why the excessive use of chemical fertilizers should be avoided? (d) Why are Scientists worried about the increase of CO2 in atmosphere?

#cssnexus #Vitamin Deficiency Diseases #Cholesterol #Atherosclerosis