3. To reduce drag, automobiles, ships, aeroplanes are given : (a) Attractive shape (b) A streamlined shape (d) Ball bearings (c) Treads
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Answer:
A streamlined shape is given To reduce drag, automobiles, ships, aeroplanes are given
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Answer:
(b) A Streamlined Shape
Explanation:
A streamlined shape (the middle is wide, and the front and back are flat) is given to boats and ships, to help cut through the water.
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