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Answer the following questions.(a) Why do knives and blades have sharp edges?(b) Why are ski-boards that are used to glide over ice long and broad?(c) Why does ink not spill out of an ink dropper?(d) Why does a plastic bottle full of steam get pressed in if placed in a refrigerator? |
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Answer» Answer the following questions. (a) Why do knives and blades have sharp edges? (b) Why are ski-boards that are used to glide over ice long and broad? (c) Why does ink not spill out of an ink dropper? (d) Why does a plastic bottle full of steam get pressed in if placed in a refrigerator? |
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