1) Which energy flows from warmer subtances to cooler subtances? a) sound energy b) light energy c) chemical energy  d) thermal energy e) Electrical energy f) Nuclear energy  2) Which renewable energy that comes from the sun can be converted into electrical or thermal energy through solars panels ? a) chemical energy b) sound energy c) Hydraulic  d) Wind e) Solar energy  f) Geothermal  3) Which of the following is not a fossil fuel? a) Coal b) Uranium  c) Crude oil d) Natural gas 4) Which non-renewable enrgy is mainly made up of methane gas? a) Coal  b) Uranium c) Crude oil d) Natural gas 5) Which non-renewable energy is extracted from beneath the seabed or on land using drills? a) Uranium b) Coal c) Crude oil d) Natural gas 6) Which energy is a vibration which flow in waves? a) Thermal energy b) Electrical energy c) Chemical energy d) Nuclear energy e) Sound energy f) Light energy 7) Why is wind power unreliable? a) Because the weather changes  b) Because wind is subject to drought  c) It is very expensive   d) It is very inefficient 8) What is the disadventage of biomass as an energy sources? a) Because the weather changes? b) It very expensive c) It causes air pollution 9) Which energy is this? a) Sound energy b) Thermal energy c) Electrical energy d) Light energy e) Nuclear eneergy f) Chemical energy 10) Which energy is this? a) Thermal energy b) Sound energy c) Electrical energy d) Light energy e) Mechanical energy f) Nucler energy

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