Question

Group 'A'
1. Photosynthesis
2. Age of the Sun
3. Image in a plane mirror
4. Lead glass
Group 'B'
(a) Electric bulb
(b) Physical change
(c) Chemical Change
(d) Smooth surface
(e) 4.5 x 109 years
5. Dissolution of salt in water​

Answer 1

Explanation:

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Answer 2

Answer:

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