Here are the correct answers for each technique:
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Technique that uses parallel lines that go in the same direction to indicate value on or around an object: Hatching
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Technique of using dots to create areas of light and shadow: Stippling
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Technique that uses crossing lines to indicate value on or around an object: Cross-hatching
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Technique that often uses a long stick of tightly twisted paper to apply smooth value changes in a drawing: Blending
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