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What is a bulldozer?
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A bulldozer is a machine used mainly on building sites to move earth. It has caterpillar tracks to grip soft ground and a blade at the front that can be raised or lowered. To scrape the ground level, the bulldozer drives forward with the blade lowered.
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Previous:
Back
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Book:
Best Ever Q&A
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Section:
Science & Technology
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Chapter:
Machines
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