aa

aaa

alkaline

batteries

battery

cell

charge

chemicals

coin

conservation

container

dead

disposable

disposal

dispose

earth

ecology

electric

electrical

electricity

electronics

energy

environment

environmental

fuel

industry

landfill

lead

mercury

metal

negative

nimh

old

pb

pile

pollution

positive

power

recharge

rechargeable

recycle

recycling

renewable

supply

technology

toxic

trash

used

waste

worn