Q2. Answer the following questions. (Any-Two)
1) Which are the industrial uses ofacids?
2) State the importance of arteries,veins and capillaries.
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1) Industrial uses of acid are :
Sulphuric acid is used in manufacturing fertilizers such as superphosphate, ammonium sulphate etc. Sulphuric acid is used in the manufacture of dyes. Nitric acid is used in the manufacture of paints. Sulphuric acid is used in the manufacture of drugs.
2) The arteries deliver the oxygen-rich blood to the capillaries, where the actual exchange of oxygen and carbon dioxide occurs. The capillaries then deliver the waste-rich blood to the veins for transport back to the lungs and heart. Veins carry the blood back to the heart.
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