Which of the following is the main effect of greenhouse gases on Earth?, A. They increase the Earth’s surface temperature, B. They make the air cleaner, C. They decrease rainfall globally, D. They increase soil fertility, Which action helps reduce greenhouse gases?, A. Using electric scooters instead of petrol vehicles, B. Burning coal for electricity, C. Deforestation, D. Driving more cars, Which material allows electricity to pass through it easily?, A. Copper, B. Wood, C. Plastic, D. Rubber, Why are metals used in electrical wires?, A. They are good conductors of electricity, B. They are colorful and shiny, C. They are poor conductors of electricity, D. They are light in weight, A student tests a copper wire and a wooden stick in a circuit. Only the copper wire lights the bulb. What does this show?, A. Copper is a good conductor of electricity, wood is not, B. Wood is a better conductor than copper, C. Both materials conduct electricity equally, D. Copper does not conduct electricity.
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Reflection-Electricity
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