3 Why are cooking utensils made of metal? A They are light B They are shiny C They conduct heat well D They are cheap
4 Which surface is a good emitter of heat? A Shiny surface B Polished surface C Black surface D White surface
7 Which factor does not affect specific heat capacity? A Nature of substance B Mass C Temperature change D Material
8 Which activity increases greenhouse gases? A Plantation B Recycling C Burning fossil fuels D Rainfall
10 Global warming can cause: A Melting of glaciers B Decrease in sea level C Lower temperature D Stable climate
14 Which gas is mainly responsible for greenhouse effect? A Oxygen B Nitrogen C Carbon dioxide D Hydrogen
15 Which quantity depends on mass and specific heat capacity? A Temperature B Heat C Density D Pressure
17 Heat flow in geothermal systems occurs mainly by: A Conduction B Convection C Radiation D Evaporation
19 Handles of cooking pans are made of wood because: A Wood is heavy B Wood is cheap C Wood is a poor conductor of heat D Wood looks good