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5 questions
This is a blanket of air that surrounds the Earth.
gravity
atmosphere
rotate
orbit
Which part of a mammal is most likely to become a fossil?
fur
bones
skin
organs
What water source is completely surrounded by land?
ocean
lake
river
sea
What do you call a scientist who studies rocks?
Doctor
Geologist
Meteorologist
Biologist
Which of these instruments measures wind direction?
wind vane
rain gauge
thermometer
ruler
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