Class VII

During heavy exercise, breathing rate
  1. Remain same
  2. Decreases
  3. Increases
  4. First increase than decrease
Bodies transmitting heat via radiation 
  1. Do not require any medium 
  2. Are liquids only 
  3. Make heat travels in one direction only 
  4. Solids only 
A polished silvery surface is 
  1. Good absorber of heat 
  2. Good reflector of heat 
  3. Poor reflector of heat 
  4. None of these 
In Fahrenheit scale, water freezes at 
  1. 00 F 
  2. 32o F 
  3. 40o F 
  4. 212o F 
Higher the temperature of the body _ is the kinetic energy of the molecules of that body ? 
  1. Higher 
  2. Llower 
  3. Same 
  4. None of these 
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