a powerplant is operated by steam
the smoke is coming from many factories is polluting the air
we learned that water is a renewable energy from the book
because graphs show a dramatic change many labs use graphs
canada beavers has disadvantage that we can't learn english on weekend
so many radioactive are harmful for health
at school beverage is replaced by water
brandon teacher requirs a set of 3prints
i hope we have an intelligent robot at my house
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