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Q1- Multiple choice type questions: - [1X20=20], , 1) Which of the following is not an insulator?, , A) Copper B) Rubber C) Plastic D) Wood, , 2) Like poles of a magnet each other., , A) Repel B) Attract C) Slide over D) Roll over, , 3) The solid state of water is _ ., , A) Ice B) Steam C) Water D) None of these, , 4) Which of the following is a clean fuel?, , A) CNG B) Coal C) Diesel D) Petrol, , 5) Garbage is a waste., , A) Solid B) Liquid C) Gaseous D) None to these, , 6) The length of a table can be measured by ., , A) Measuring tape B) Handspan C) Cubit D) Pace, , 7) We are able to see image in a mirror due to _ ., , A) Reflection B) Dispersion C) Refraction D) Lateral inversion, 8) Which is not the source of electricity?, , A) Fan B) Generator C) Power station D) Battery, , 9) Making useful things from waste materials is called ., , A) Recycling B) Reduce C) Reuse D) Refuse, , 10) All the packaging material later becomes ., , A) Waste B) Sewage C) Both (A) and (B) D) None of these, 11) Air is a of gases., , A) Mixture B) Solution C) Both (A) and (B) D) None of these, 12) Moving air is called ., , A) Wind B) Storm C) Tornado D) Cyclone, , 13) increases the availability of ground water., , A) Rainwater harvesting B) Mountain C) Trees D) All of these, 14) A magnet always has _ poles., , A) Two B) One C) Three D) Four, , 15) Poles of a magnet always exist in ., , A) Pairs B) Alone C) Both (A) and (B) D) None of these, 16) Metals are conductors of electricity., , A) Good B) Poor, , C) Both (A) and (B) D) None of these, , 17) The gas present in maximum amount in air is ., , A) Nitrogen B) Oxygen C) Carbon dioxide D) Argon, , 18) The amount of water vapour present in air is called as ., A) Humidity B) Smoke C) Oxygen D) Dust, , 19) Gaseous state of wateris_., , A) Steam B) Water C) Ice D) None of these, , 20) The standard unit of length is ., , A) Metre B) Kilogram C) Scale D) Litre