Write down what will happen it the following substance are given heat
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7
Explanation:
- When heat is added to any substance, the particles gain energy and vibrates(with more speed) or vigorously about their fixed positions, forcing each other further apart.
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2
Explanation:
An artificial system of classification is based upon one or a few easily observable characteristics and is devised and used for a limited purpose where convenience and speed are important. It conveys little information. On the other hand, the natural system of classification is based on a large number of characters.
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