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  MCQs Questions with Answers Q1. Find out incorrect sentence: (a) Protista includes unicellular eukaryotic organisms (b) Whittaker considered cell structure, mode and source of nutrition classifying the organisms in five kingdoms (c) Both Monera and Protista may be autotrophic and heterotrophic (d) Monerans have well defined nucleus Answer: (d) Monerans have well defined nucleus Q2. Which among the following has specialised tissue for conduction of water? (i) Thallophyta (ii) Bryophyta (iii) Pteridophyta (iv) Gymnosperms (a) (i) and (ii) (b) (ii) and (iii) (c) (iii) and (iv) (d) (i) and (iv) Answer: (c) (iii) and (iv) Q3. Which among the following produce seeds? (a) Thallophyta (b) Bryophyta (c) Pteridophyta (d) Gymnosperms Answer: (d) Gymnosperms Q4. Which one is a true fish? (a) Jellyfish (b) Starfish (c) Dogfish (d) Silverfish Answer: (c) Dogfish Q5. Which among the following is exclusively marine? (a) Porifera (b) Echinodermata (c) Mollusca (d) Pisces ...

  MCQ Questions science 1.) The first law of motion introduced the concept of- a) Momentum b) Inertia c) Action and reactions d) Kinetic energy Answer: b) Inertia. 2.) According to first law of motion, the states of uniform motion and rest are …… a) Equal b) Unequal c) Non related d) None of these. Answer: a) Equal. 3.) Force is a physical quantity depends on a) Speed b) Mass c) Acceleration d) Both b and c Answer: d) Both b and c. Hint- Second law of motion. 4.) If a particles of mass 8 kg is moving with constant velocity of 20 m/s then net force on that object will be. a) 160 N b) 20 N c) 80 N d) 0 N Answer: (d) 0 N The object is moving with constant velocity so net force must be zero. 5.) If a ball of mass 200 gm is moving with 20 m/s then its momentum is a) 40 kg m/s b) 400 kg m/s c) 4 Kg m/s d) 0.4 kg m/s Answer: (c) 4 kg m/s. Mass = 200 gm = 0.2 kg, velocity = 20 m/s. As Momentum = 0.2 × 20 Momentum = 4 kg m/s. 6.) The SI unit of g is a) N m/kg b) N m²/kg c) N m² /kg² d) N² m...