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a person who studies the weather
Each morning, the meteorologist appears on the local news station and predicts the weather.
inventions built to make everyday life easier
More and more kids are using new technology like tablets and smartphones to do their homework.
a series of events that occur over and over
Water moves in a cycle from the ground to the clouds and back down to the ground again.
required by law or rules
In many states in the U.S., it ‘s mandatory to wear a helmet while riding a bicycle.
brought back into use
Construction workers revived many of the buildings that were damaged in the storm.
no longer existing
Saber-toothed tigers went extinct about 10,000 years ago.