like: Energy and Conservation
Beginner Level Intermediate Level
Advanced Level
ENGLISH DEFINITIONS
exact:
all words:
OPD : 
Energy and Conservation
OPD : Energy sources Energy and Conservation
OPD : solar energy Energy and Conservation
OPD : wind power Energy and Conservation
OPD : natural gas Energy and Conservation
OPD : coal Energy and Conservation
OPD : hydroelectric power Energy and Conservation
OPD : oil / petroleum Energy and Conservation
OPD : geothermal energy Energy and Conservation
OPD : nuclear energy Energy and Conservation
OPD : biomass / bioenergy Energy and Conservation
OPD : fusion Energy and Conservation
OPD : Pollution Energy and Conservation
OPD : air pollution / smog Energy and Conservation
OPD : hazardous waste Energy and Conservation
OPD : acid rain Energy and Conservation
OPD : water pollution Energy and Conservation
OPD : radiation Energy and Conservation
OPD : pesticide poisoning Energy and Conservation
OPD : oil spill Energy and Conservation
OPD : Ways to Conserve Energy Energy and Conservation
OPD : reduce trash Energy and Conservation
OPD : reuse shopping bags Energy and Conservation
OPD : recycle Energy and Conservation
OPD : buy recycled products Energy and Conservation
OPD : save water Energy and Conservation
OPD : fix leaky fauces Energy and Conservation
OPD : turn off lights Energy and Conservation
OPD : use energy-efficient bulbs Energy and Conservation
OPD : carpool Energy and Conservation
OPD : adjust the thermostat Energy and Conservation
OPD : wash cothes in cold water Energy and Conservation
OPD : don't litter Energy and Conservation
OPD : compost food scraps Energy and Conservation
OPD : plant a tree Energy and Conservation
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