Which of the following statement is NOT true about acid rain? (1) Its pH is less than 5.6 (2) It is due to reaction of SO2, NO2 and CO2 with rain water (3) Causes no damage to monuments like Taj Mahal (4) It is harmful for plants
Which of the following is a sink for CO? (a) Microorganisms present in the soil (b) Oceans (c) Plants (d) Haemoglobin
A water sample has ppm level concentration of the following metals: Fe= 0.2; Mn = 5.0; Cu = 3.0; Zn = 5.0. The metal that makes the water sample unsuitable drinking is : (1) Zn (2) Fe (3) Mn (4) Cu
Among the following, the one that is not a green house gas is (1) Nitrous oxide (2) Methane (3) Ozone (4) Sulphur dioxide
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