Question

Q6. Give reasons for the following
i) Table mats are made from cane or plastics.ii)Ventilators are situated close to the ceiling.iii) Handles of bikes and scooters are covered with rubber.iv) We cannot use laboratory thermometer to measure our body temperature.v) We prefer to wear white clothes in summervi) Heating coils of a room heater have a shiny curved metal surface.vii) Solar cookers are painted black from inside

Answer 1

5. becoz white reflects heat

Answer 2

Answer:

The handles of bikes and scooters are made from plastic because they make easy to hold or grip in our hand and they partly absorbs vibration. Moreover, plastics are bad conductor of heat, so during summer they don't heat more when kept under sun.