2. State whether the following are physical or chemical changes. (a) glowing of a bulb (b) burning of sugar (c) heating of water (d) growing of a piglet into a pig (e) burning of wood ( passing electric current through a heater's ro (g) water cycle in nature (h) respiration in living beings (i) shaping a piece of glass (j) lightning (k) dissolving sugar in water (1) heating a mixture of iron filings and sulph (m) mixing oil with water (n) cutting wood into small pieces. (0) photosynthesis (p) Digestion of food (9) Melting of wax (r) Boiling of an egg (s) Slaking of lime Physical and Chemical Changes
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Answer:
- PHYSICAL
- CHEMICAL
- PHYSICAL
- CHEMICAL
- CHEMICAL
- PHYSICAL
- PHYSICAL
- PHYSICAL
- CHEMICAL
- CHEMICAL
- PHYSICAL
- CHEMICAL
- PHYSICAL
- CHEMICAL
- CHEMICAL
- CHEMICAL
- PHYSICAL
- CHEMICAL
- CHEMICAL
Explanation:
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