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Acid Rain (n). WHAT IS ACID RAIN (n) ?. Generally, rain water(n) has a pH value(n) of(prep.) 5.6 because of the carbon dioxide(n) from air(n) dissolved(v) in it( pn ). Any rainfall(n) has a pH value less than 5.6 is defined(v) as acid rain(n).
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WHAT IS ACID RAIN(n)? • Generally, rain water(n) has a pH value(n) of(prep.) 5.6 because of the carbon dioxide(n) from air(n) dissolved(v) in it(pn). • Any rainfall(n) has a pH value less than5.6 is defined(v) as acid rain(n)
When gas pollutants(n) e.g. sulphur dioxide, nitrogen dioxidedissolve(v) in(prep.) rain water(n), various acids(n) are formed(v). • CO2 + H2O H2CO3 (carbonic acid)(n) • SO2 + H2O H2SO3 (sulphorous acid) • NO2 + H2O HNO2 (nitrous acid) + HNO3 (nitric acid)
Formation(v) of SulphuricAcid(n)(H2SO4) 2SO2(g) + O2(g) 2SO3(g) SO3(g) + H2O(l) H2SO4(aq) Formation(v) of Nitric Acid(n)(HNO3) 2NO(g) + O2(g) 2NO2(g) 4NO2(g) + 2H2O(l) + O2(g) 4HNO3(aq)
FORMATION OF ACID RAIN SO2 NOX
ENVIRONMENTAL PROBLEMS(n) 1.Vegetation(n) • Wash(v) away(av) essential(adj) nutrients(n) ions from soil(n) • Poor(av) growth(v) of plants(n)
2.Aquatic Life(n) • Inflow(v) of acidic(adj) water(n) containing(v) poisonous(adj) metal ions(n) • Kill(v) the fish(n) and water plants(n)
3. Building(n) • Acid rain(n) attacks(v) the building materials(n) and causes(v) corrosion(n).
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Question and Answer 1. What is an acid rain? 2.What is the main air pollutants for the formation of acid rain? Answer Answer
3.What is the pH range for the acid rain? 4.What are the major sources of air pollutants? Answer Answer
5.What is the side effect of acid rain on plants? 6. What is the side effect of acid rain on marine life? Answer Answer
7. What is the side effect of acid rain on building material? Answer