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Question

Aristotle showed his class a video: "A day in a village”. The video revolves around a primary school going teen named Swami. It showed his general day to day activities. Following are the excerpts from the video.
1. To walk through a waterlogged area, Swami shortens the length of his dress by folding it.
2. In school, he drew an apple on his slate with chalk.
3. After school, he directly came back to his home and started playing with his new toy, but it broke accidentally.
4. At night, his mother cooked food for him. He ate and then retires to bed.
Connect the above excerpts to reversible or irreversible change. (NA denote not any)


A

Reversible change - 1, 2, 3, 4; Irreversible change - NA

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B

Reversible change - 1, 2; Irreversible change - 3, 4

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C
Reversible change - 3, 4; Irreversible change - 1, 2
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D

Reversible change - NA; Irreversible change - 1,2,3,4

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Solution

The correct option is B

Reversible change - 1, 2; Irreversible change - 3, 4


The excerpts from the video are:
1. To walk through a waterlogged area, Swami shortens the length of his dress by folding it. This is a reversible change because swami can unfold his dress so the change can be undone.
2. In school, he drew an apple on his slate with chalk. This is a reversible change because Swami can erase the apple drawn on the slate, so the change can be undone.
3. After school, he came directly back to his home and started playing with his new toy. But accidentally it broke. This is irreversible change because once a toy is broken it can't be mended back to look same so the change cannot be undone.
4. At night, his mother cooked food for him. He ate and then retires to bed. This is irreversible change because once the food is cooked and eaten, it cannot be same as it was before.

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