Q1: What substance is attracted towards a magnet? A: Steel.
Q2: Which of the following is not considered as biomass? A: Tar.
Q3: Select the answer containing only renewable energy sources. A: Wind, flowing water, sea waves.
Q4: When two bar magnets, labeled 'Z' and 'Y', were moved together and repelled, what pole of 'Z' moved towards 'Y'? A: North pole.
Q5: Which is not a correct example for sustainable use of energy sources? A: Opening the refrigerator door frequently.
Q6: What is the basic characteristic of micro-organisms? A: Invisible to the naked eye when taken individually.
Q7: What is the correct statement about the above activity involving light? A: Light cannot be observed through the curved tube because light is transmitted only in straight lines.
Q8: The gas produced using rotten vegetables, fruits, hay, and animal waste is? A: Biogas.
Q9: Which characteristic of gases is used to store large volumes of gas in small cylinders? A: Gases can be stored by applying high pressure.
Q10: Which statement about magnets is incorrect? A: The north pole is indicated by red color.
Q11: Which activity does not affect the loss of hearing? A: Wearing safety equipment when exposed to loud sounds.
Q12: What plant grows in water? A: Lotus.
Q13: Where cannot surface water be seen? A: Rain.
Q14: Organisms growth is limited. Give correct examples for limited and unlimited growth. A: Limited: Gecko, earthworm. Unlimited: Jack tree, Guava tree.
Q15: What is incorrect about the activity involving small pieces of paper and a drum (rabana)? A: Rabana is a sound-producing equipment.
Q16: In what state is water gaseous? A: Steam.
Q17: What is the symbol of the standard unit of measuring mass? A: kg.
Q18: Select the answer which includes materials that show the property of elasticity. A: Rubber and plastic.
Q19: Which of the following is a source of energy? A: Flowing water.
Incorrect statement: The amount of salt dissolved in fresh water is very high.
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