Example: stock market
Mark scheme (Higher) : Paper 1 - June 2019
1: 1 . 1 4.1.2.2 AO2 . 1.6 bulbs also transfer thermal energy . the efficiency of the light bulb also needs to be considered . allow light bulbs emit infrared radiation as well as visible light ignore so people know how bright the bulb is : allow the cost to power the light bulb depends on the efficiency . allow to see how much energy is wasted ...
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