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Question 9., , Is it safe for the electrician to carry out electrical repairs outdoors during, heavy downpour? Explain., , Answer:, , No, it is highly dangerous to carry out the electrical repairs outdoors during, the heavy downpour. It can cause electrocution, as water is a good conductor, of electricity., , Question 10, , Paheli had heard that rainwater is as good as distilled water. So she collected, some rainwater in a clean glass tumbler and tested it using a tester. To her, surprise, she found that the compass needle showed deflection. What could, be the reasons?, , Answer:, , Rainwater is pure water which is an insulator but it gets mixed with air, pollutants like sulphur dioxide and nitrogen oxides and form acidic solution,, which is a good conductor of electricity. So, the compass needle showed, deflection