Now we use it to __________ electricity.
sell
generate
protect
share
In the future, it might help us __________ a healthier planet.
test
build
save
control
Turbines must be placed in locations where wind is strong and __________.
sunny
noisy
steady
cold
Wind energy may not __________ all of our problems.
explain
fix
solve
break
Some people say turbines spoil the __________ of natural places.
safety
history
weather
beauty
It does not produce __________ gases or harm the environment.
strong
deep
harmful
colorful
Scientists are working hard to __________ turbines more efficient.
make
turn
show
push
Wind is a __________ resource—it never runs out.
hidden
dangerous
renewable
regular
Wind was used to move sailing ships across the oceans and to __________ machines like windmills.
fix
power
drive
break
It’s difficult to __________ the electricity to where it is needed.
discover
deliver
protect
remove